NASA’s New Horizons mission science team has produced this updated panchromatic (black-and-white) global map of Pluto. Credits: NASA/JHUAPL/SWRI
NASA’s New Horizons mission science team has produced this updated panchromatic (black-and-white) global map of Pluto. Credits: NASA/JHUAPL/SWRI
The science team leading NASA’s New Horizons mission that unveiled the true nature of Pluto’s long hidden looks during the history making maiden close encounter last July, have published a fresh global map that offers the sharpest and most spectacular glimpse yet of the mysterious, icy world.
The newly updated global Pluto map is comprised of all the highest resolution images transmitted back to Earth thus far and provides the best perspective to date.
Click on the lead image above to enjoy Pluto revealed at its finest thus far. Click on this link to view the highest resolution version.
Prior to the our first ever flyby of the Pluto planetary system barely 8 months ago, the planet was nothing more than a fuzzy blob with very little in the way of identifiable surface features – even in the most powerful telescopic views lovingly obtained from the Hubble Space Telescope (HST).
Dead center in the new map is the mesmerizing heart shaped region informally known as Tombaugh Regio, unveiled in all its glory and dominating the diminutive world.
The panchromatic (black-and-white) global map of Pluto published by the team includes the latest images received as of less than one week ago on April 25.
The images were captured by New Horizons’ high resolution Long Range Reconnaissance Imager (LORRI).
The science team is working on assembling an updated color map.
During its closest approach at approximately 7:49 a.m. EDT (11:49 UTC) on July 14, 2015, the New Horizons spacecraft swoop to within about 12,500 kilometers (nearly 7,750 miles) of Pluto’s surface and about 17,900 miles (28,800 kilometers) from Charon, the largest moon.
The map includes all resolved images of Pluto’s surface acquired in the final week of the approach period ahead of the flyby starting on July 7, and continuing through to the day of closest approach on July 14, 2015 – and transmitted back so far.
The pixel resolutions are easily seen to vary widely across the map as you scan the global map from left to right – depending on which Plutonian hemisphere was closest to the spacecraft during the period of close flyby.
They range from the highest resolution of 770 feet (235 meters), at center, to 18 miles (30 kilometers) at the far left and right edges.
The Charon-facing hemisphere (left and right edges of the map) had a pixel resolution of 18 miles (30 kilometers).
“This non-encounter hemisphere was seen from much greater range and is, therefore, in far less detail,” noted the team.
However the hemisphere facing New Horizons during the spacecraft’s closest approach on July 14, 2015 (map center) had a far higher pixel resolution reaching to 770 feet (235 meters).
Coincidentally and fortuitously the spectacularly diverse terrain of Tombaugh Regio and the Sputnik Planum area of the hearts left ventricle with ice flows and volcanoes, mountains and river channels was in the region facing the camera and sports the highest resolution imagery.
See below a newly released shaded relief map of Sputnik Planum.
This new shaded relief view of the region surrounding the left side of Pluto’s heart-shaped feature – informally named Sputnik Planum – shows that the vast expanse of the icy surface is on average 2 miles (3 kilometers) lower than the surrounding terrain. Angular blocks of water ice are “floating” in the bright deposits of softer, denser solid nitrogen. Credits: NASA/JHUAPL/SwRI
“Sputnik Planum – shows that the vast expanse of the icy surface is on average 2 miles (3 kilometers) lower than the surrounding terrain. Angular blocks of water ice along the western edge of Sputnik Planum can be seen “floating” in the bright deposits of softer, denser solid nitrogen,” according to the team.
Even more stunning images and groundbreaking data will continue streaming back from New Horizons until early fall, across over 3 billion miles of interplanetary space.
Thus the global map of Pluto will be periodically updated.
Its taking over a year to receive the full complement of some 50 gigabits of data due to the limited bandwidth available from the transmitter on the piano-shaped probe as it hurtled past Pluto, its largest moon Charon and four smaller moons.
Pluto is the last planet in our solar system to be visited in the initial reconnaissance of planets by spacecraft from Earth since the dawn of the Space Age.
This new global mosaic view of Pluto was created from the latest high-resolution images to be downlinked from NASA’s New Horizons spacecraft and released on Sept. 11, 2015. The images were taken as New Horizons flew past Pluto on July 14, 2015, from a distance of 50,000 miles (80,000 kilometers). This new mosaic was stitched from over two dozen raw images captured by the LORRI imager and colorized. Annotated with informal place names. Credits: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Marco Di Lorenzo/Ken Kremer/kenkremer.com
New Horizons remains on target to fly by a second Kuiper Belt Object (KBO) on Jan. 1, 2019 – tentatively named PT1, for Potential Target 1. It is much smaller than Pluto and was recently selected based on images taken by NASA’s Hubble Space Telescope.
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
Curiosity rover reached out with robotic arm and drilled into ‘Lubango’ outcrop target on Sol 1320, Apr. 23, 2016, in this photo mosaic stitched from navcam camera raw images and colorized. Lubango is located in the Stimson unit on the lower slopes of Mount Sharp inside Gale Crater. MAHLI camera inset image shows drill hole up close on Sol 1321. Credit: NASA/JPL/MSSS/Ken Kremer/kenkremer.com/Marco Di Lorenzo
Curiosity rover reached out with robotic arm and drilled into ‘Lubango’ outcrop target on Sol 1320, Apr. 23, 2016, in this photo mosaic stitched from navcam camera raw images and colorized. Lubango is located in the Stimson unit on the lower slopes of Mount Sharp inside Gale Crater. MAHLI camera inset image shows drill hole up close on Sol 1321. Credit: NASA/JPL/MSSS/Ken Kremer/kenkremer.com/Marco Di Lorenzo
NASA’s CuriosityMars Science Laboratory (MSL) rover successfully bored a brand new hole in Mars at a tantalizing sandstone outcrop in the ‘Lubango’ fracture zone this past weekend on Sol 1320, Apr. 23, and is now carefully analyzing the shaken and sieved drill tailings for clues to Mars watery past atop the Naukluft Plateau.
“We have a new drill hole on Mars!” reported Ken Herkenhoff, Research Geologist at the USGS Astrogeology Science Center and an MSL science team member, in a mission update.
“All of the activities planned for last weekend have completed successfully.”
“Lubango” counts as the 10th drilling campaign since the one ton rover safely touched down on the Red Planet some 44 months ago inside the targeted Gale Crater landing site, following the nailbiting and never before used ‘sky crane’ maneuver.
After transferring the cored sample to the CHIMRA instrument for sieving it, a portion of the less than 0.15 mm filtered material was successfully delivered this week to the CheMin miniaturized chemistry lab situated in the rovers belly.
CheMin is now analyzing the sample and will return mineralogical data back to scientists on earth for interpretation.
The science team selected Lubango as the robots 10th drill target after determining that it was altered sandstone bedrock and had an unusually high silica content based on analyses carried out using the mast mounted ChemCam laser instrument.
Indeed the rover had already driven away for further scouting and the team then decided to return to Lubango after examining the ChemCam results. They determined the ChemCam and other data observation were encouraging enough – regarding how best to sample both altered and unaltered Stimson bedrock – to change course and drive backwards.
Lubango sits along a fracture in an area that the team dubs the Stimson formation, which is located on the lower slopes of humongous Mount Sharp inside Gale Crater.
This mid-afternoon, 360-degree panorama was acquired by the Mast Camera (Mastcam) on NASA’s Curiosity Mars rover on April 4, 2016, as part of long-term campaign to document the context and details of the geology and landforms along Curiosity’s traverse since landing in August 2012. Credit: NASA/JPL-Caltech/MSSS
Since early March, the rover has been traversing along a rugged region dubbed the Naukluft Plateau.
“The team decided to drill near this fracture to better understand both the altered and unaltered Stimson bedrock,” noted Herkenhoff.
See our photo mosaic above showing the geologically exciting terrain surrounding Curiosity with its outstretched 7-foot-long (2-meter-long) robotic arm after completing the Lubango drill campaign on Sol 1320. The mosaic was created by the imaging team of Ken Kremer and Marco Di Lorenzo.
Its again abundantly clear from the images that beneath the rusty veneer of the Red Planet lies a greyish interior preserving the secrets of Mars ancient climate history.
Curiosity rover views ‘Lubango’ drill target up close in this MAHLI camera image taken on Sol 1321, Apr. 24, 2016, processed to enhance details. Credit: NASA/JPL/MSSS/Marco Di Lorenzo/Ken Kremer/kenkremer.com
The team then commanded Curiosity to dump the unsieved portion of the sample onto the ground and examine the leftover drill tailing residues with the Mastcam, Navcam, MAHLI multispectral characterization cameras and the APXS spectrometer. ChemCam is also being used to fire laser shots in the wall of the drill hole to make additional chemical measurements.
To complement the data from Lubango, scientists are now looking around the area for a suitable target of unaltered Stimson bedrock as the 11th drill target.
“The color information provided by Mastcam is really helpful in distinguishing altered versus unaltered bedrock,” explained MSL science team member Lauren Edgar, Research Geologist at the USGS Astrogeology Science Center, in a mission update.
The ChemCam laser has already shot at the spot dubbed “Oshikati,” a potential target for the next drilling campaign.
“On Sunday we will drive to our next drilling location, which is on a nearby patch of normal-looking Stimson sandstone,” wrote Ryan Anderson, planetary scientist at the USGS Astrogeology Science Center and a member of the ChemCam team on MSL in today’s (Apr. 28) mission update.
As time permits, the Navcam imager is also being used to search for dust devils.
As I reported here, Opportunity recently detected a beautiful looking dust devil on the floor of Endeavour crater on April 1. Dust devil detections by the NASA rovers are relatively rare.
Curiosity has been driving to the edge of the Naukluft Plateau to reach the interesting fracture zone seen in orbital data gathered from NASA’s Mars orbiter spacecraft.
Curiosity images Naukluft Plateau in this photo mosaic stitched from Mastcam camera raw images taken on Sol1296. Credit: NASA/JPL/MSSS/Marco Di Lorenzo/Ken Kremer/kenkremer.com
The rover is almost finished crossing the Naukluft Plateau which is “the most rugged and difficult-to-navigate terrain encountered during the mission’s 44 months on Mars,” says NASA.
Curiosity explores Red Planet paradise at Namib Dune during Christmas 2015 – backdropped by Mount Sharp. Curiosity took first ever self-portrait with Mastcam color camera after arriving at the lee face of Namib Dune. This photo mosaic shows a portion of the full self portrait and is stitched from Mastcam color camera raw images taken on Sol 1197, Dec. 19, 2015. Credit: NASA/JPL/MSSS/Ken Kremer/kenkremer.com/Marco Di Lorenzo
As of today, Sol 1325, April 28, 2016, Curiosity has driven over 7.9 miles (12.7 kilometers) since its August 2012 landing, and taken over 320,100 amazing images.
Spectacular Mastcam camera view of Gale Crater rim from Curiosity on Sol 1302 enhanced to bring out detail. Credit: NASA/JPL/MSSS/Marco Di Lorenzo/Ken Kremer/kenkremer.com
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
Artists concept for sending SpaceX Red Dragon spacecraft to land propulsively on Mars as early as 2020. Credit: SpaceX
Artists concept for sending SpaceX Red Dragon spacecraft to land propulsively on Mars as early as 2018. Credit: SpaceX
SpaceX announced plans today, April 27, for the first ever private mission to Mars which involves sending an uncrewed version of the firms Dragon spacecraft to accomplish a propulsive soft landing – and to launch it as soon as 2018 including certain technical assistance from NASA.
Under a newly signed space act agreement with NASA, the agency will provide technical support to SpaceX with respect to Mars landing technologies for the new spacecraft known as a ‘Red Dragon’ and possibly also for science activities.
“SpaceX is planning to send Dragons to Mars as early as 2018,” the company posted in a brief announcement today on Facebook and other social media about the history making endeavor.
The 2018 commercial Mars mission involves launching the ‘Red Dragon’ – also known as Dragon 2 – on the SpaceX Falcon Heavy rocket from Launch Pad 39A at NASA’s Kennedy Space Center in Florida. It’s a prelude to eventual human missions.
The Red Dragon initiative is a commercial endeavor that’s privately funded by SpaceX and does not include any funding from NASA. The agreement with NASA specifically states there is “no-exchange-of-funds.”
As of today, the identity and scope of any potential science payload is undefined and yet to be determined.
Hopefully it will include a diverse suite of exciting research instruments from NASA, or other entities, such as high powered cameras and spectrometers characterizing the Martian surface, atmosphere and environment.
SpaceX CEO and billionaire founder Elon Musk has previously stated his space exploration goals involve helping to create a Mars colony which would ultimately lead to establishing a human ‘City on Mars.’
Musk is also moving full speed ahead with his goal of radically slashing the cost of access to space by recovering a pair of SpaceX Falcon 9 first stage boosters via successful upright propulsive landings on land and at sea – earlier this month and in Dec. 2015.
Artists concept for sending uncrewed SpaceX Red Dragon spacecraft to land propulsively on Mars as early as 2018. Credit: SpaceX
The 2018 liftoff campaign marks a significant step towards fulfilling Musk’s Red Planet vision. But we’ll have to wait another 5 months for concrete details.
“Red Dragon missions to Mars will also help inform the overall Mars colonization architecture that SpaceX will reveal later this year,” SpaceX noted.
Musk plans to reveal the details of the Mars colonization architecture later this year at the International Astronautical Congress (IAC) being held in Guadalajara, Mexico from September 26 to 30, 2016.
Landing on Mars is not easy. To date only NASA has successfully soft landed probes on Mars that returned significant volumes of useful science data.
In the meantime a few details about the SpaceX Red Dragon have emerged.
The main goal is to propulsively land something 5-10 times the size of anything previously landed before.
“These missions will help demonstrate the technologies needed to land large payloads propulsively on Mars,” SpaceX further posted.
NASA’s 1 ton Curiosityrover is the heaviest spaceship to touchdown on the Red Planet to date.
Artists concept for sending SpaceX Red Dragon spacecraft to Mars as early as 2018. Credit: SpaceX
As part of NASA’s agency wide goal to send American astronauts on a human ‘Journey to Mars’ in the 2030s, NASA will work with SpaceX on some aspects of the Red Dragon initiative to further the agency’s efforts.
According to an amended space act agreement signed yesterday jointly by NASA and SpaceX officials – that originally dates back to November 2014 – this mainly involves technical support from NASA and exchanging entry, descent and landing (EDL) technology, deep space communications, telemetry and navigation support, hardware advice, and interplanetary mission and planetary protection advice and consultation.
“We’re particularly excited about an upcoming SpaceX project that would build upon a current “no-exchange-of-funds” agreement we have with the company,” NASA Deputy Administrator Dava Newman wrote in a NASA blog post today.
“In exchange for Martian entry, descent, and landing data from SpaceX, NASA will offer technical support for the firm’s plan to attempt to land an uncrewed Dragon 2 spacecraft on Mars.”
“This collaboration could provide valuable entry, descent and landing data to NASA for our journey to Mars, while providing support to American industry,” NASA noted in a statement.
The amended agreement with NASA also makes mention of sharing “Mars Science Data.”
As of today, the identity, scope and weight of any potential science payload is undefined and yet to be determined.
Perhaps it could involve a suite of science instruments from NASA, or other entities, such as cameras and spectrometers characterizing various aspects of the Martian environment.
In the case of NASA, the joint agreement states that data collected with NASA assets is to be released within a period not to exceed 6 months and published where practical in scientific journals.
The Red Dragon envisioned for blastoff to the Red Planet as soon as 2018 would launch with no crew on board on a critical path finding test flight that would eventually pave the way for sending humans to Mars – and elsewhere in the solar system.
“Red Dragon Mars mission is the first test flight,” said Musk.
“Dragon 2 is designed to be able to land anywhere in the solar system.”
However, the Dragon 2 alone is far too small for a round trip mission to Mars – lasting some three years or more.
“Wouldn’t be fun for longer journeys. Internal volume ~size of SUV.”
Furthermore, for crewed missions it would also have to be supplemented with additional modules for habitation, propulsion, cargo, science, communications and more. Think ‘The Martian’ movie to get a realistic idea of the complexity and time involved.
Red Dragon’s blastoff from KSC pad 39A is slated to take place during the Mars launch window opening during April and May 2018.
The inaugural liftoff of the Falcon Heavy is currently scheduled for late 2016 after several years postponement.
If all goes well, Red Dragon could travel to Mars at roughly the same time as NASA’s next Mission to Mars – namely the InSight science lander, which will study the planets deep interior with a package of seismometer and heat flow instruments.
InSight’s launch on a United Launch Alliance Atlas V is targeting a launch window that begins May 5, 2018, with a Mars landing scheduled for Nov. 26, 2018. Liftoff was delayed from this year due to a flaw in the French-built seismometer.
SpaceX Red Dragon spacecraft launches to Mars on SpaceX Falcon Heavy as soon as 2018 in this artists comcept. Credit: SpaceX
Whoever wants to land on Mars also has to factor in the relevant International treaties regarding ‘Planetary Protection’ requirements.
Wherever the possibility for life exists, the worlds space agency’s who are treaty signatories, including NASA, are bound to adhere to protocols limiting contamination by life forms from Earth.
SpaceX intends to take planetary protection seriously. Under the joint agreement, SpaceX is working with relevant NASA officials to ensure proper planetary protection procedures are followed. One of the areas of collaboration with NASA is for them to advise SpaceX in the development a Planetary Protection Plan (PPP) and assist with the implementation of a PPP including identifying existing software/tools.
Red Dragon is derived from the SpaceX crew Dragon vehicle currently being developed under contract for NASA’s Commercial Crew Program (CCP) to transport American astronauts back and forth to low Earth orbit and the International Space Station (ISS).
SpaceX and Boeing were awarded commercial crew contracts from NASA back in September 2014.
Both firms hope to launch unmanned and manned test flights of their SpaceX Crew Dragon and Boeing CST-100 Starliner spacecraft to the ISS starting sometime in 2017.
The crew Dragon is also an advanced descendent of the original unmanned cargo Dragon that has ferried tons of science experiments and essential supplies to the ISS since 2012.
A SpaceX Falcon 9 rocket and Dragon cargo ship are set to liftoff on a resupply mission to the International Space Station (ISS) from launch pad 40 at Cape Canaveral, Florida on Jan. 6, 2015. File photo. Credit: Ken Kremer – kenkremer.com
To enable propulsive landings, SpaceX recently conducted hover tests using a Dragon 2 equipped with eight side-mounted SuperDraco engines at their development testing facility in McGregor, TX.
These are “Key for Mars landing,” SpaceX wrote.
“We are closer than ever before to sending American astronauts to Mars than anyone, anywhere, at any time has ever been,” Newman states.
SpaceX Dragon 2 crew vehicle, powered by eight SuperDraco engines, conducts propulsive hover test at the company’s rocket development facility in McGregor, Texas. Credit: SpaceX
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
This prototype 13-kilowatt Hall thruster was tested at NASA's Glenn Research Center in Cleveland and will be used by industry to develop high-power solar electric propulsion into a flight-qualified system. Credits: NASA
This prototype 13-kilowatt Hall thruster was tested at NASA’s Glenn Research Center in Cleveland and will be used by industry to develop high-power solar electric propulsion into a flight-qualified system. Credits: NASA
Under the 3 year, $67 million contract award, Aerojet Rocketdyne will develop the engineering development unit for an Advanced Electric Propulsion System (AEPS) with the potential for follow on flight units.
NASA hopes that the work will result in a 10 fold increase in “spaceflight transportation fuel efficiency compared to current chemical propulsion technology and more than double thrust capability compared to current electric propulsion systems.”
The SEP effort is based in part on NASA’s exploratory work on Hall ion thrusters which trap electrons in a magnetic field and uses them to ionize and accelerate the onboard xenon gas propellant to produce thrust much more efficiently than chemical thrusters.
The solar electric propulsion (SEP) system technology will afford benefits both to America’s commercial space and scientific space exploration capabilities.
For NASA, the SEP technology can be applied for expeditions to deep space such as NASA’s planned Asteroid Robotic Redirect Mission (ARRM) to snatch a boulder from the surface of an asteroid and return it to cislunar space during the 2020s, as well as to carry out the agency’s ambitious plans to send humans on a ‘Journey to Mars’ during the 2030s.
“High power SEP is a perfect example of NASA developing cross cutting technologies to enable both human and robotic deep space missions. Basically it enables high efficiency and better gas mileage,” said Steve Jurczyk, associate administrator of NASA’s Space Technology Mission Directorate (STMD) in Washington, at a media briefing.
“The advantage here is the higher power and the higher thrust.”
“Our plan right now is to flight test the higher power solar electric propulsion that Aerojet Rocketdyne will develop for us on the Asteroid Redirect Robotic Mission (ARRM), which is going to go out to an asteroid with a robotic system, grab a boulder off of an asteroid, and bring it back to a lunar orbit.”
ARRM would launch around 2020 or 2021. Astronauts would blast off several years later in NASA’s Orion crew capsule in 2025 after the robotic probes travels back to lunar orbit.
For industry, electric propulsion is used increasingly to maneuver thrusters in Earth orbiting commercial satellites for station keeping in place of fuel.
“Through this contract, NASA will be developing advanced electric propulsion elements for initial spaceflight applications, which will pave the way for an advanced solar electric propulsion demonstration mission by the end of the decade,” says Jurczyk.
“Development of this technology will advance our future in-space transportation capability for a variety of NASA deep space human and robotic exploration missions, as well as private commercial space missions.”
This 13-kilowatt Hall thruster is being evaluated at NASA’s Glenn Research Center in Cleveland for advanced solar electric propulsion. Hall thrusters trap electrons in a magnetic field and use them to ionize the onboard propellant. Credits: NASA
“This is also a critical capability for enabling human missions to Mars, with respect to delivering cargo to the surface to Mars that will allow people to live and work there on the surface. Also for combined chemical and SEP systems on a spacecraft to propel humans to Mars,” elaborated Jurczyk at the briefing.
“Another application is round trip robotic science missions to Mars to bring back samples – such as a Mars Sample Return (MSR) mission.”
The starting point is NASA’s development and technology readiness testing of a prototype 13-kilowatt Hall thruster and power processing unit at NASA’s Glenn Research Center in Cleveland.
Under the contract award Aerojet Rocketdyne aims to carry out the industrial development of “high-power solar electric propulsion into a flight-qualified system.”
They will develop, build, test and deliver “an integrated electric propulsion system consisting of a thruster, power processing unit (PPU), low-pressure xenon flow controller, and electrical harness,” as an engineering development unit.
This engineering development unit serves as the basis for producing commercial flight units.
If successful, NASA has an option to purchase up to four integrated flight units for actual space missions. Engineers from NASA Glenn and the Jet Propulsion Laboratory (JPL) will provide technical support.
“We could string together four of these engine units to get approximately 50 kilowatts of electrical propulsion capability and with that we can do significant orbital transfer operations. That then becomes the next step in deep space exploration operations that we are trying to do,” said Bryan Smith, director of the Space Flight Systems Directorate at NASA’s Glenn Research Center in Cleveland, at the media briefing.
“We hope to buy four of these units for the ARRM mission.”
What were some of NASA’s research and development (R&D) activities and further plans for Aerojet Rocketdyne?
“NASA is driving out the technology itself for feasibility. So we produced a developmental device to operate at these levels,” Smith told Universe Today during the briefing.
“Other key characteristics we were looking for is the ability to do magnetic shielding. The purpose was to allow for a long life thruster operation. We investigated attributes like thermal problems and balancing the erosion mechanisms in developmental units. So we were looking for things to get longer life and feasibility in developmental units.”
“Once we were comfortable with the feasibility in developmental units, we are now transferring the information, technology and knowhow into what is a production article, in this contract.”
Robotic sampling arm and capture mechanism to collect a multi-ton boulder from an asteroid are under development at NASA Goddard and other agency centers for NASA’s unmanned Asteroid Redirect Vehicle and eventual docking in lunar orbit with Orion crew vehicle by the mid 2020s. Credit: Ken Kremer/kenkremer.com
Solar electric ion propulsion is already being used in NASA’s hugely successful Dawn asteroid orbiter mission.
Dawn was launched in 2007. It orbited and surveyed Vesta in 2011 and 2012 and then traveled outward to Ceres.
Dawn arrived at dwarf planet Ceres in March 2015 and is currently conducting breakthrough science at its lowest planned science mapping orbit.
This image was taken by NASA’s Dawn spacecraft of dwarf planet Ceres on Feb. 19 from a distance of nearly 29,000 miles (46,000 km). It shows that the brightest spot on Ceres has a dimmer companion, which apparently lies in the same basin. Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA
A key part of the Journey to Mars, NASA will be sending cargo missions to the Red Planet to pave the way for human expeditions with the Orion crew module and Space Launch System.
Aerojet Rocketdyne states that “Solar Electric Propulsion (SEP) systems have demonstrated the ability to reduce the mission cost for NASA Human Exploration cargo missions by more than 50 percent through the use of existing flight-proven SEP systems.”
“Using a SEP tug for cargo delivery, combined with NASA’s Space Launch System and the Orion crew module, provides an affordable path for deep space exploration,” said Aerojet Rocketdyne Vice President, Space and Launch Systems, Julie Van Kleeck.
Aerojet Rocketdyne artists concept for solar electric propulsion system for deep space missions. Credit: Aerojet Rocketdyne
Another near term application of high power solar electric propulsion could be for NASA’s proposed Mars 2022 telecom orbiter, said Smith at the media briefing.
Other NASA technology work in progress includes development of more efficient, advanced solar array systems to generate the additional power required for the larger electric thrusters.
Orbital ATK was part of the development effort and already used some of its technology development in the ultraflex solar arrays on the recent Cygnus cargo ships delivering supplies to the ISS.
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
Atlantis lifts off on the last launch of the shuttle program, STS-135, on July 8, 2011. Credit: NASA/Bill Ingalls
At least, that was what the results of a recent study conducted by the University of Colorado’s Anschutz Medical Campus suggest. After examining a group of test mice that spent two weeks in space aboard STS-135 – the final mission of NASA’s space shuttle program – they concluded that spending prolonged periods of time in space could in fact result liver damage.
For some time now, scientists have understood that exposure to zero-gravity or micro-gravity environments comes with its share of health effects. But so far, the research has been largely confined to other areas of the human body. Understanding the effects it has on internal organs and other aspects of one’s health are of extreme importance as NASA begins preparations for a crewed mission to Mars.
Still image shows a stunning aurora captured from the International Space Station. This frame is from a compilation of ultra-high definition time-lapses of the aurora shot from the space station. Credit: NASA
Still image shows a stunning aurora captured from the International Space Station. This frame is from a compilation of ultra-high definition time-lapses of the aurora shot from the space station. Credit: NASA
Stunning high definition views of Earth’s auroras and dancing lights as seen from space like never before have just been released by NASA in the form of ultra-high definition videos (4K) captured from the International Space Station (ISS).
Whether seen from the Earth or space, auroras are endlessly fascinating and appreciated by everyone young and old and from all walks of life.
The spectacular video compilation, shown below, was created from time-lapses shot from ultra-high definition cameras mounted at several locations on the ISS.
It includes HD view of both the Aurora Borealis and Aurora Australis phenomena seen over the northern and southern hemispheres.
The video begins with an incredible time lapse sequence of an astronaut cranking open the covers off the domed cupola – everyone’s favorite locale. Along the way it also shows views taken from inside the cupola.
The cupola also houses the robotics works station for capturing visiting vehicles like the recently arrived unmanned SpaceX Dragon and Orbital ATKCygnus cargo freighters carrying science experiments and crew supplies.
The video was produced by Harmonic exclusively for NASA TV UHD;
Video caption: Ultra-high definition (4K) time-lapses of both the Aurora Borealis and Aurora Australis phenomena shot from the International Space Station (ISS). Credit: NASA
The video segue ways into multi hued auroral views including Russian Soyuz and Progress capsules, the stations spinning solar panels, truss and robotic arm, flying over Europe, North America, Africa, the Middle East, star fields, the setting sun and moon, and much more.
Auroral phenomena occur when electrically charged electrons and protons in the Earth’s magnetic field collide with neutral atoms in the upper atmosphere.
“The dancing lights of the aurora provide a spectacular show for those on the ground, but also capture the imaginations of scientists who study the aurora and the complex processes that create them,” as described by NASA.
Here’s another musical version to enjoy:
The ISS orbits some 250 miles (400 kilometers) overhead with a multinational crew of six astronauts and cosmonauts living and working aboard.
The current Expedition 47 crew is comprised of Jeff Williams and Tim Kopra of NASA, Tim Peake of ESA (European Space Agency) and cosmonauts Yuri Malenchenko, Alexey Ovchinin and Oleg Skripochka of Roscosmos.
Some of the imagery was shot by recent prior space station crew members.
Here is a recent aurora image taken by flight engineer Tim Peake of ESA as the ISS passed through on Feb. 23, 2016.
“The @Space_Station just passed straight through a thick green fog of #aurora…eerie but very beautiful,” Peake wrote on social media.
The @Space_Station just passed straight through a thick green fog of #aurora…eerie but very beautiful. Credit: NASA/ESA/Tim Peake
An artist's illustration of NASA's Dawn spacecraft with its ion propulsion system approaching Ceres. Image: NASA/JPL-Caltech.
The Dawn spacecraft, NASA’s asteroid hopping probe, may not be going gently into that good night as planned. Dawn has visited Vesta and Ceres, and for now remains in orbit around Ceres. The Dawn mission was supposed to end after its rendezvous with Ceres, but now, reports say that the Dawn team has asked NASA to extend the mission to visit a third asteroid.
Dawn was launched in 2007, and in 2011 and 2012 spent 14 months at Vesta. After Vesta, it reached Ceres in March 2015, and is still in orbit there. The mission was supposed to end, but according to a report at New Scientist, the team would like to extend that mission.
Dawn is still is fully operational, and still has some xenon propellant remaining for its ion drive, so why not see what else can be achieved? There’s only a small amount of propellant left, so there’s only a limited selection of possible destinations for Dawn at this point. A journey to a far-flung destination is out of the question.
Chris Russell, of the University of California, Los Angeles, is the principal investigator for the Dawn mission. He told New Scientist, “As long as the mission extension has not been approved by NASA, I’m not going to tell you which asteroid we plan to visit,” he says. “I hope a decision won’t take months.”
If the Dawn mission is not extended, then its end won’t be very fitting for a mission that has accomplished so much. It will share the fate of some other spacecraft at the end of their lives; forever parked in a harmless orbit in an out of the way place, forgotten and left to its fate. The only other option is to crash it into a planet or other body to destroy it, like the Messenger spacecraft was crashed into Mercury at the end of its mission.
The crash and burn option isn’t available to Dawn though. The spacecraft hasn’t been sterilized. If it hasn’t been sterilized of all possible Earthly microbial life, then it is strictly forbidden to crash it into Ceres, or another body like it. Planetary protection rules are in place to avoid the possible contamination of other worlds with Earthly microbial life. It’s not likely that any microbes that may have hitched a ride aboard Dawn would have survived Dawn’s journey so far, nor is it likely that they would survive on the surface of Ceres, but rules are rules.
The secret of Dawn’s long-life and success is not only due to the excellent work by the teams responsible for the mission, it’s also due to Dawn’s ion-drive propulsion system. Ion drives, long dreamed of in science and science fiction, are making longer voyages into deep space possible.
Ion drives start very slow, but gain speed incrementally, continuing to generate thrust over long distances and long periods of time. They do all this with minimal propellant, and are ideal for long space voyages like Dawn’s.
The success of the Dawn mission is key to NASA’s plans for further deep space exploration. NASA continues to work on improving ion drives, and their latest project is the Advanced Electric Propulsion System (AEPS.) This project is meant to further develop the Hall Thruster, a type of ion-drive that NASA hopes will extend spacecraft mission capabilities, allow longer and deeper space exploration, and benefit commercial space activities as well.
The AEPS has the potential to double the thrust of current ion-drives like the one on Dawn. It’s a key component of NASA’s Journey to Mars. NASA also has plans for a robotic asteroid capture mission called Asteroid Redirect Mission, which will use the AEPS. That mission will visit an asteroid, retrieve a boulder- sized asteroid from the surface, and place it in orbit around the Moon. Eventually, astronauts will visit it and return samples to Earth for study. Very ambitious.
As far as the Dawn mission goes, it’s unclear what its next destination might be. Vesta and Ceres were chosen because they are thought be surviving protoplanets, formed at the same time as the other planets. But they stopped growing, and they remain largely undisturbed, so in that sense they are kind of locked in time, and are intriguing objects of study. There are other objects in the vicinity, but it would be pure guesswork to name any.
We are prone to looking at the past nostalgically, and thinking of prior decades as the golden age of space exploration. But as Dawn, and dozens of other current missions and scientific endeavours in space show us, we may well be in a golden age right now.
Up close view of base of recovered SpaceX Falcon 9 first stage rocket powered by 9 Merlin 1 D engines being transported horizontally back to SpaceX processing hanger at the Kennedy Space Center from Port Canaveral, Florida storage and processing facility on April 19, 2016. Credit: Julian Leek
Up close view of base of recovered SpaceX Falcon 9 first stage rocket powered by 9 Merlin 1 D engines being transported horizontally back to SpaceX processing hanger at the Kennedy Space Center from Port Canaveral, Florida storage and processing facility on April 19, 2016. Note: landing legs were removed. Credit: Julian Leek
The recovered SpaceX Falcon 9 first stage booster that successfully carried out history’s first upright touchdown from a just flown rocket onto a droneship at sea, has just been moved back to the firms processing hanger at the Kennedy Space Center (KSC) for testing and eventual reflight.
Space photographers and some lucky tourists coincidentally touring through Cape Canaveral Air Force Station in the right place at the right time on a tour bus, managed to capture exquisite up close images and videos (shown above and below) of the rockets ground transport on Tuesday, April 19, along the route from its initial staging point at Port Canaveral to a secure area on KSC.
It was quite a sight to the delight of all who experienced this remarkable moment in space history – that could one day revolutionize space flight by radically slashing launch costs via recycled rockets.
The boosters nine first stage Merlin 1 D engines were wrapped in a protective sheath during the move as seen in the up close imagery.
Recovered SpaceX Falcon 9 first stage rocket was transported horizontally back to SpaceX processing hanger at the Kennedy Space Center from Port Canaveral, Florida storage and processing facility on April 19, 2016. Credit: Julian Leek
The SpaceX Falcon 9 had successfully conducted a dramatic propulsive descent and soft landing on a barge some 200 miles offshore in the Atlantic Ocean on April 8, about 9 minutes after blasting off from Cape Canaveral Air Force Station at 4:43 p.m. EDT on the Dragon CRS-8 cargo mission for NASA to the International Space Station (ISS).
The used Falcon 9 booster then arrived back into Port Canaveral, Florida four days later, overnight April 12, after being towed atop the ocean going platform that SpaceX dubs an ‘Autonomous Spaceport Drone Ship’ or ASDS.
The spent 15 story tall Falcon 9 booster was transported to KSC by Beyel Bros. Crane and Rigging, starting around 9:30 a.m.
Recovered SpaceX Falcon 9 first stage rocket was transported horizontally back to SpaceX processing hanger at the Kennedy Space Center from Port Canaveral, Florida storage and processing facility on April 19, 2016. Credit: Julian Leek
After initial cleaning and clearing of hazards and processing to remove its four landing legs at the Port facility, the booster was carefully lowered by crane horizontally into a retention cradle on a multiwheel combination Goldhofer/KMAG vehicle and hauled by Beyel to KSC with a Peterbilt Prime Mover truck.
The Falcon 9 was moved to historic Launch Complex 39A at KSC for processing inside SpaceX’s newly built humongous hanger located at the pad perimeter.
Indeed this Falcon 9 first stage is now residing inside the pad 39A hanger side by side with the only other flown rocket to be recovered; the Falcon 9 first stage that accomplished a land landing back at the Cape in December 2015 – as shown in this image from SpaceX CEO Elon Musk titled “By land and sea”.
Side by side SpaceX Falcon 9 first stages recovered ‘by land and sea’ in Dec 2015 and Apr 2016. Credit: SpaceX/Elon Musk
Watch this video of the move taken from a tour bus:
SpaceX engineers plan to conduct a series of some 12 test firings of the first stage Merlin 1 D engines to ensure all is well operationally in order to validate that the booster can be re-launched.
It may be moved back to Space Launch Complex-40 for the series of painstakingly inspections, tests and refurbishment.
The nine Merlin 1 D engines that power SpaceX Falcon 9 are positioned in an octoweb arrangement, as shown in this up close view of the base of recovered first stage during transport to Kennedy Space Center pad 39 A from Port Canaveral, Florida on April 19, 2016. Credit: Julian Leek
SpaceX hopes to refly the recovered booster in a few months, perhaps as early as this summer.
The vision of SpaceX’s billionaire founder and CEO Elon Musk is to dramatically slash the cost of access to space by recovering the firms rockets and recycling them for reuse – so that launching rockets will one day be nearly as routine and cost effective as flying on an airplane.
The essential next step after recovery is recycling. Musk said he hopes to re-launch the booster this year.
Whenever it happens, it will count as the first relaunch of a used rocket in history.
SpaceX has leased Pad 39A from NASA and is renovating the facilities for future launches of the existing upgraded Falcon 9 as well as the Falcon Heavy currently under development.
SpaceX Crew Dragon will blast off atop a Falcon 9 rocket from Launch Pad 39A at NASA’s Kennedy Space Center in Florida for missions to the International Space Station. Pad 39A is undergoing modifications by SpaceX to adapt it to the needs of the company’s Falcon 9 and Falcon Heavy rockets, which are slated to lift off from the historic pad in the near future. A horizontal integration facility (right) has been constructed near the perimeter of the pad where rockets will be processed for launch prior of rolling out to the top of the pad structure for liftoff. Credit: Ken Kremer/Kenkremer.com
Landing on the barge was a secondary goal of SpaceX and not part of the primary mission sending science experiments and cargo to the ISS crew under a resupply contract with for NASA.
Watch this SpaceX Falcon 9/Dragon CRS-8 launch video from my video camera placed at the pad:
Video Caption: Spectacular blastoff of SpaceX Falcon 9 rocket carrying Dragon CRS-8 cargo freighter bound for the International Space Station (ISS) from Space Launch Complex 40 on Cape Canaveral Air Force Station, FL at 4:43 p.m. EST on April 8, 2016. Up close movie captured by Mobius remote video camera placed at launch pad. Credit: Ken Kremer/kenkremer.com
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
Space Launch System (SLS) core stage engine section finishes welding at the Vertical Assembly Center at NASA's Michoud Assembly Facility in New Orleans for maiden flight of SLS rocket. Credit: NASA
Space Launch System (SLS) core stage engine section finishes welding at the Vertical Assembly Center at NASA’s Michoud Assembly Facility in New Orleans for maiden flight of SLS rocket. Credit: NASA
One weld at a time, the flight hardware for NASA’s mammoth new Space Launch System (SLS) booster has at last started taking shape, promising to turn years of planning and engineering discussions into reality and a rocket that will one day propel our astronauts on a ‘Journey to Mars.’
The first actual SLS flight hardware has been assembled, leaping from engineering blueprints on computer screens to individual metallic components that technicians are feeding into NASA’s gigantic “Welding Wonder” machine at the agency’s Michoud Assembly Facility in New Orleans.
Technicians are bending metal and have now finished welding together the pieces of flight hardware forming the first major SLS flight component – namely the engine section that sits at the base of the SLS core stage.
The core stage towers over 212 feet (64.6 meters) tall, sports a diameter of 27.6 feet (8.4 m) and stores the cryogenic liquid hydrogen and liquid oxygen that feeds and fuels the boosters RS-25 engines.
A liquid oxygen tank confidence article for NASA’s new rocket, the Space Launch System, completes final welding on the Vertical Assembly Center at Michoud Assembly Facility in New Orleans. Credit: NASA/Michoud/Steven Seipel
SLS will be the most powerful rocket the world has ever seen. It will propel astronauts in the Orion capsule on deep space missions, first back to the Moon by around 2021, then to an asteroid around 2025 and then beyond to the Red Planet in the 2030s – NASA’s overriding and agency wide goal.
NASA’s Space Launch System (SLS) blasts off from launch pad 39B at the Kennedy Space Center in this artist rendering showing a view of the liftoff of the Block 1 70-metric-ton (77-ton) crew vehicle configuration. Credit: NASA/MSFC
The SLS core stage welding work is carried out in the massive 170-foot-tall Vertical Assembly Center (VAC) at Michoud. Boeing is the prime contractor for the SLS core stage.
On Sept. 12, 2014, NASA Administrator Charles Bolden officially unveiled VAC as the world’s largest welder at Michoud.
“This rocket is a game changer in terms of deep space exploration and will launch NASA astronauts to investigate asteroids and explore the surface of Mars while opening new possibilities for science missions, as well,” said NASA Administrator Charles Bolden during the ribbon-cutting ceremony at Michoud.
NASA Administrator Charles Bolden officially unveils world’s largest welder to start construction of core stage of NASA’s Space Launch System (SLS) rocket at NASA Michoud Assembly Facility, New Orleans, on Sept. 12, 2014. SLS will be the world’s most powerful rocket ever built. Credit: Ken Kremer – kenkremer.com
Each of the RS-25’s engines generates some 500,000 pounds of thrust, fueled by cryogenic liquid hydrogen and liquid oxygen. They are recycled for their original use as space shuttle main engines
For SLS they will be operating at 109% of power, compared to a routine usage of 104.5% during the shuttle era. They measure 14 feet tall and 8 feet in diameter.
The SLS weld team has been busy. Technicians have already assembled a qualification version of the engine section on the Vertical Assembly Center at Michoud. Later this year it will be shipped to NASA’s Marshall Space Flight Center in Huntsville, Alabama, to undergo structural loads testing.
In March, they also completed welding of a liquid oxygen tank confidence article on the Vertical Assembly Center. And in February they welded the liquid hydrogen tank confidence article.
SLS core stage will be welded together from barrels and domes using the Vertical Assembly Center (VAC) at NASA’s Michoud Assembly Facility. Credit: Ken Kremer/ kenkremer.com
The SLS core stage is comprised of five major structures: the forward skirt, the liquid oxygen tank, the intertank, the liquid hydrogen tank and the engine section.
The tanks are assembled by joining previously manufactured domes, rings and barrels components together in the Vertical Assembly Center by a process known as friction stir welding. The rings connect and provide stiffness between the domes and barrels.
The SLS core stage builds on heritage from NASA’s Space Shuttle Program and is based on the shuttle’s External Tank (ET). All 135 ET flight units were built at Michoud during the thirty year long shuttle program.
According to the current schedule, NASA plans to finish all welding for the core stage — including confidence, qualification and flight hardware — of the SLS-1 rocket sometime this summer.
Engineers are constructing the confidence and qualification hardware units to verify that the welding equipment and procedures work exactly as planned.
“The confidence will also be used in developing the application process for the thermal protection system, which is the insulation foam that gives the tank its orange color,” say NASA officials.
Altogether , the SLS first stage propulsion comprises the four RS-25 space shuttle main engines and a pair of enhanced five segment solid rocket boosters (SRBs) also derived from the shuttles four segment boosters.
The maiden test flight of the SLS/Orion is targeted for no later than November 2018 and will be configured in its initial 70-metric-ton (77-ton) version with a liftoff thrust of 8.4 million pounds.
Meanwhile the welded skeletal backbone for the Orion EM-1 mission recently arrived at the Kennedy Space Center on Feb. 1 for outfitting with all the systems and subsystems necessary for flight.
Orion crew module pressure vessel for NASA’s Exploration Mission-1 (EM-1) is unveiled for the first time on Feb. 3, 2016 after arrival at the agency’s Kennedy Space Center (KSC) in Florida. It is secured for processing in a test stand called the birdcage in the high bay inside the Neil Armstrong Operations and Checkout (O&C) Building at KSC. Launch to the Moon is slated in 2018 atop the SLS rocket. Credit: Ken Kremer/kenkremer.com
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
Engineers at NASA’s Johnson Space Center in Houston used the space station’s high tech robotic arm to pluck the small module known as the Bigelow Expandable Activity Module (BEAM) out from the unpressurized rear truck section of the recently arrived SpaceX Dragon cargo freighter, and added it onto the orbiting laboratory complex.
BEAM was manufactured by Las Vegas-based Bigelow Aerospace under a $17.8 million contract with NASA. It will remain joined to the station for at least a two-year test period.
The 3115 pound (1413 kg) BEAM will test the use of an expandable space habitat in microgravity with humans for the first time.
It was extracted from the Dragon’s trunk overnight with the robotic Canadarm2 and then installed on the aft port of the Tranquility module at 5:36 a.m. EDT over a period of about 4 hours. The station was flying over the Southern Pacific Ocean at the moment of berthing early Saturday.
NASA astronaut and ISS Expedition 47 crew member Tim Kopra snapped a super cool photo of BEAM in transit, shown above.
BEAM module after installation on the ISS Tranquility module on April 16, 2016. Credit: NASA
BEAM was carried to orbit in a compressed form inside the Dragon’s truck following the April 8 blast off from Cape Canaveral Air Force Station at 4:43 p.m. EDT on the Dragon CRS-8 resupply mission for NASA to the ISS.
BEAM is a prototype inflatable habitat that could revolutionize the method of construction of future habitable modules intended for use both in Low Earth Orbit (LEO) as well as for deep space expeditions Beyond Earth Orbit (BEO) to destinations including the Moon, Asteroids and Mars.
The advantage of expandable habitats is that they offer a much better volume to weight ratio compared to standard rigid metallic structures such as all of the current ISS pressurized modules.
It is constructed of lighter weight reinforced fabric rather that metal. This counts as the first test of an expandable module and investigators want to determine how it fares with respect to protection again solar radiation, space debris and the temperature extremes of space.
Furthermore they also take up much less space inside the payload fairing of a rocket during launch.
Watch this animation showing how Canadarm2 transports BEAM from the Dragon spacecraft to a side berthing port on Tranquility where it will soon be expanded.
Animation shows how the International Space Station robotic arm will transport BEAM from the Dragon spacecraft to a side berthing port on the Tranquility module where it will then be expanded. Credit: NASA
Current plans call for the module to be expanded in late May with air. It will expand to nearly five times from its compressed size of 8 feet in diameter by 7 feet in length to roughly 10 feet in diameter and 13 feet in length. Once inflated it will provide 565 cubic feet (16 m3) of habitable volume.
Exactly how it will expand is also an experiment and could happen in multiple ways. Therefore the team will exercise great caution and carefully monitor the inflation and check for leaks.
The Bigelow Expandable Activity Module, or BEAM, is attached to the International Space Station early on April 16, 2016. Credit: NASA
The astronauts will first enter BEAM about a week after the expansion. Thereafter they will visit it about 2 or 3 times per year for several hours to retrieve sensor data and assess conditions, say NASA officials.
Visits could perhaps occur even frequently more if NASA approves. says Bigelow CEO Robert Bigelow.
BEAM is an extraordinary test bed in itself.
This computer rendering depicts the Canadarm2 robotic arm removing BEAM from the back of the Space X Dragon spacecraft. Credit: NASA
But Robert Bigelow hopes that BEAM can be used to conduct science experiments after maybe a six month shakedown cruise, if all goes well, and NASA approves a wider usage.
Bigelow Aerospace has already taken in the next step in expandable habitats.
Earlier this week, Bigelow and rocket builder United Launch Alliance (ULA) announced they are joining forces to develop and launch the B330 expandable commercial habitat module in 2020 on an Atlas V. It is about 20 times larger and far more capable. Details in my story here.
Robert Bigelow says he hopes that NASA will approve docking of the B330 at the ISS.
This artist’s concept depicts the Bigelow Expandable Activity Module attached to the International Space Station’s Tranquility module. Credits: Bigelow Aerospace
The SpaceX Dragon spacecraft delivered almost 7,000 pounds of cargo.
CRS-8 counts as the company’s eighth flight to deliver supplies, science experiments and technology demonstrations to the ISS for the crews of Expeditions 47 and 48 to support dozens of the approximately 250 science and research investigations in progress.
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
Learn more about SpaceX, NASA Mars rovers, Orion, SLS, ISS, Orbital ATK, ULA, Boeing, Space Taxis, NASA missions and more at Ken’s upcoming outreach events:
Apr 17: “NASA and the Road to Mars Human Spaceflight programs”- 1:30 PM at Washington Crossing State Park, Nature Center, Titusville, NJ – http://www.state.nj.us/dep/parksandforests/parks/washcros.html
