Artist's concept of the planet Mercury orbiting through a debris trail from Comet Encke that may cause a meteor shower. Credit: NASA's Goddard Space Flight Center
We’re sure going to miss the MESSENGER spacecraft at Mercury when it concludes its mission in 2015, because it keeps bringing us really unexpected news about the Sun’s closest planet. Here’s the latest: Mercury may get a periodic meteor shower when it passes through the debris trail of Comet Encke.
Why do scientists suspect this? It’s not from patiently watching for shooting stars. Instead, they believe the signature of calcium in Mercury’s tenuous atmosphere may be pointing to a pattern.
MESSENGER (which stands for MErcury Surface, Space ENvironment, GEochemistry, and Ranging) has been orbiting the planet for three Earth years and sees regular “surges” in calcium abundance on a predictable schedule. The researchers suspect it’s because of bits of dust colliding with Mercury and ricocheting bits of calcium up from the surface.
Mercury also picks up bits of dust from interplanetary debris, but the scientists say it’s not enough to account for the amounts of calcium they see. Extrapolating, the researchers suspect it must occur as the planet passes through debris left behind from a comet or asteroid. There are a small number of such small bodies that do this, and the scientists narrowed it down to Encke.
Illustration of MESSENGER in orbit around Mercury (NASA/JPL/APL)
Computer simulations of the comet’s debris showed a slight difference from what researchers predicted, but they believe it’s because of variations in Mercury’s orbit as it gets tugged by larger planets, particularly Jupiter. Encke itself takes about 3.3 years to do one lap around the Sun, and has been photographed by MESSENGER in the past.
“The possible discovery of a meteor shower at Mercury is really exciting and especially important because the plasma and dust environment around Mercury is relatively unexplored,” stated lead author Rosemary Killen, a planetary scientist at NASA’s Goddard Space Flight Center in Maryland.
MESSENGER, meanwhile, is burning off the last of its fuel to stay in orbit; the final engine maneuver is expected for Jan. 21. Once that’s finished, the spacecraft will slowly spiral down towards the planet for an expected impact in March, ending the mission.
The Orion crew module was recovered Dec. 5, 2014 after splashdown in the Pacific Ocean about 600 miles off the coast of San Diego, California. Credit: U.S. Navy
Video Caption: Last moments of Orion descent as viewed from the recovery ship USS Anchorage. Credit: NASA/US Navy
Relive the final moments of the first test flight of NASA’s Orion spacecraft on Dec. 5, 2014, through this amazing series of up close videos showing the spacecraft plummeting back to Earth through the rollicking ocean recovery by dive teams from the US Navy and the USS Anchorage amphibious ship.
The two orbit, 4.5 hour flight maiden test flight of Orion on the Exploration Flight Test-1 (EFT-1) mission was a complete success.
It was brought back to land to the US Naval Base San Diego, California.
Orion’s test flight began with a flawless launch on Dec. 5 as it roared to orbit atop the fiery fury of a 242 foot tall United Launch Alliance Delta IV Heavy rocket – the world’s most powerful booster – at 7:05 a.m. EST from Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida.
The unpiloted test flight of Orion on the EFT-1 mission ignited NASA’s roadmap to send Humans to Mars by the 2030s by carrying the capsule farther away from Earth than any spacecraft designed for astronauts has traveled in more than four decades.
Humans have not ventured beyond low Earth orbit since the launch of Apollo 17 on NASA’s final moon landing mission on Dec. 7, 1972.
Video Caption: NASA TV covers the final moments of Orion spacecraft descent and splashdown in the Pacific Ocean approximately 600 miles southwest of San Diego on Dec. 5, 2014, as viewed live from the Ikhana airborne drone. Credit: NASA TV
The spacecraft was loaded with over 1200 sensors to collect critical performance data from numerous systems throughout the mission for evaluation by engineers.
EFT-1 tested the rocket, second stage, and jettison mechanisms as well as avionics, attitude control, computers, environmental controls, and electronic systems inside the Orion spacecraft and ocean recovery operations.
It also tested the effects of intense radiation by traveling twice through the Van Allen radiation belt.
After successfully accomplishing all its orbital flight test objectives, the capsule fired its thrusters and began the rapid fire 10 minute plummet back to Earth.
During the high speed atmospheric reentry, it approached speeds of 20,000 mph (32,000 kph), approximating 85% of the reentry velocity for astronauts returning from voyages to the Red Planet.
The capsule endured scorching temperatures near 4,000 degrees Fahrenheit in a critical and successful test of the 16.5-foot-wide heat shield and thermal protection tiles.
The entire system of reentry hardware, commands, and 11 drogue and main parachutes performed flawlessly.
Finally, Orion descended on a trio of massive red and white main parachutes to achieve a statistical bulls-eye splashdown in the Pacific Ocean, 600 miles southwest of San Diego, at 11:29 a.m. EST.
It splashed down within one mile of the touchdown spot predicted by mission controllers after returning from an altitude of over 3600 miles above Earth.
The three main parachutes slowed Orion to about 17 mph (27 kph).
Here’s a magnificent up close and personal view direct from the US Navy teams that recovered Orion on Dec. 5, 2014.
Video Caption: Just released footage of the Orion Spacecraft landing and recovery! See all the sights and sounds, gurgling, and more from onboard the Zodiac boats with the dive teams on Dec. 5, 2014. See the initial recovery operations, including safing the crew module and towing it into the well deck of the USS Anchorage, a landing platform-dock ship. Credit: US Navy
Navy teams in Zodiac boats had attached a collar and winch line to Orion at sea and then safely towed it into the flooded well deck of the USS Anchorage and positioned it over rubber “speed bumps.”
Next they secured Orion inside its recovery cradle and transported it back to US Naval Base San Diego where it was off-loaded from the USS Anchorage.
The Orion EFT-1 spacecraft was recovered by a combined team from NASA, the U.S. Navy, and Orion prime contractor Lockheed Martin.
Orion has been offloaded from the USS Anchorage and moved about a mile to the “Mole Pier” where Lockheed Martin technicians have conducted the first test inspection of the crew module and collected test data.
It will soon be hauled on a flatbed truck across the US for a nearly two week trip back to Kennedy where it will arrive just in time for the Christmas holidays.
NASA Administrator Charles Bolden briefs the media about the “Big Deal” goals of the first Orion deep space crew module during prelaunch meeting backdropped by Orion and Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida prior to launch on Dec. 5, 2014. Credit: Ken Kremer – kenkremer.com
Technicians at KSC will examine every nook and cranny of Orion and will dissemble it for up close inspection and lessons learned.
NASA’s first Orion spacecraft blasts off at 7:05 a.m. atop United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida on Dec. 5, 2014. Launch pad remote camera view. Credit: Ken Kremer – kenkremer.com
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
NASA’s first Orion spacecraft blasts off at 7:05 a.m. atop United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida on Dec. 5, 2014. Launch pad remote camera view. Credit: Ken Kremer – kenkremer.comPrelaunch night view of NASA’s first Orion spacecraft bolted atop triple barreled United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida. Credit: Ken Kremer – kenkremer.com
A color mosaic of Candor Chasma (part of Mars' Valles Marineris) based on data from Voyager 1 and Voyager 2. Credit: NASA
Mars today is a planet that appears to be mostly shaped by wind, but that wasn’t always the case. A new map adds information to the hypothesis that “marsquakes” affected at least a part of the planet’s vast canyon, Valles Marineris, while the area contained spring-filled lakes.
When the damp sand got shaken up, it deposited itself in hills. NASA says the new map, based on observations from the Mars Reconnaissance Orbiter (which you can see below), adds credence to the theory that it was water that made these deposits.
“The conditions under which sedimentary deposits in it formed have been an open issue for decades,” NASA wrote in a press release. “Possibilities proposed have included accumulation in lakebeds, volcanic eruptions under glaciers within the canyons, and accumulation of wind-blown sand and dust.”
The map you see below was created by the U.S. Geological Survey, which has more extensive information on the findings at this website. The observations also produced a suite of research in recent years, such as this 2009 paper led by Scott Murchie at the Johns Hopkins University Applied Research Laboratory.
Part of a map of Candor Chasma (part of Mars’ Valles Marineris) based on observations from the Mars Reconnaissance Orbiter. Green is knobby terrain, pink is lobate deposits (ridged material) and blue “stair-stepped morphology” of hills and mesas. Credit: U.S. Geological Survey
Titan's surface is almost completely hidden from view by its thick orange "smog" (NASA/JPL-Caltech/SSI. Composite by J. Major)
Titan is Saturn’s largest moon and is constantly surprising scientists as the Cassini spacecraft probes under its thick atmosphere. Take its dunes, for example, which are huge and pointed the wrong way.
Why are they pointing opposite to the prevailing east-west winds? It happens during two rare wind reversals during a single Saturn year (30 Earth years), investigators suggest.
Investigators repurposed an old NASA wind tunnel to simulate how Titan is at the surface, watching how the wind affects sand grains. (They aren’t sure what kind of sand is on Titan, so they tried 23 different kinds to best simulate what they think it is, which is small hydrocarbon particles that are about 1/3 the density of what you find on Earth.)
After two years of work with the model — not to mention six years of refurbishing the tunnel — the team determined that the wind must blow 50% faster than believed to get the sand moving.
Dunes on Titan seen in Cassini’s radar (top) that are similar to Namibian sand dunes on Earth. The features that appear to be clouds in the top picture are actually topographic features. Credit: NASA
“It was surprising that Titan had particles the size of grains of sand—we still don’t understand their source—and that it had winds strong enough to move them,” stated Devon Burr, an associate professor at the University of Tennessee Knoxville’s earth and planetary science department, who led the research. “Before seeing the images, we thought that the winds were likely too light to accomplish this movement.”
The winds reverse when the Sun moves over the equator, affecting Titan’s dense atmosphere. And the effects are powerful indeed, creating dunes that are hundreds of yards (or meters) high and stretch across hundreds of miles (or kilometers).
To accomplish this, the winds would need to blow no slower than 3.2 miles per hour (1.4 meters per second), which sounds slow until you consider how dense Titan’s atmosphere is — about 12 times thicker surface pressure than what you would find on Earth. More information on the research is available in the journal Nature.
Vesta seen from the Earth-orbit based Hubble Space Telescope in 2007 (left) and up close with the Dawn spacecraft in 2011. Hubble Credit: NASA, ESA, and L. McFadden (University of Maryland). Dawn Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA. Photo Combination: Elizabeth Howell
The Hubble Space Telescope is one of the best observatories humanity has. It’s been operating for nearly 25 years in space, is still highly productive, and is a key element to mission planning for NASA as it sends spacecraft out into the Solar System. When the agency was getting ready to send Dawn to Vesta, for example, it took pictures to help with calibration.
Then Dawn got up close to the dwarf planet in 2011 and found a few surprises — liquid water that possibly flowed temporarily on the surface, for example. And as the spacecraft draws near to Ceres for a close encounter next year, it also will be looking for water — in the form of its atmosphere.
That’s following on from research out of the Herschel Space Telescope published earlier this year, showing that Ceres has a thin water vapor atmosphere surrounding the dwarf planet. It could be producing water similarly to how a comet does, through sublimation, but investigators won’t know much until they get close-up.
“Ceres has some sort of mechanism that’s putting out water vapor and causing a thin, temporary atmosphere,” said Keri Bean, a mission operations engineer at the Jet Propulsion Laboratory who works on Dawn, in a Google+ Hangout yesterday (Dec. 11). “I think that we’re going to try to look into this, and we don’t know what else Ceres will have in store for us.”
Ceres as seen from the Earth-based Hubble Space Telescope in 2004 (left) and with the Dawn spacecraft in 2014 as it approached the dwarf planet. Hubble Credit: NASA, ESA, J. Parker (Southwest Research Institute), P. Thomas (Cornell University), L. McFadden (University of Maryland, College Park), and M. Mutchler and Z. Levay (STScI). Dawn Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA. Photo Combination: Elizabeth Howell
Dawn is now so close to Ceres that its pictures will soon exceed the best ones Hubble had to offer. The image above (at right) is modest compared to the space telescope, but in a planned photo session Jan. 26 Dawn will have slightly better pictures than Hubble. By Feb. 4 they will be twice as good in quality and then seven times as good Feb. 20.
The spacecraft’s images not only have science purposes, as they let investigators study the surface, but also serve as optical navigation aids. Ceres is a tiny body and hard to navigate to from far away, so as it gets closer these pictures are crucial for Dawn to figure out where to go next.
Dawn will get its close-up of Ceres in the spring when it arrives at the dwarf planet. To get the latest on the mission, check out the entire Google+ Hangout from yesterday.
Opportunity's robotic arm is cast in shadow as the Mars rover explores the rim of Endeavour Crater on Sol 3,854 (Nov. 26, 2014). Credit: NASA/JPL-Caltech
NASA’s aging Mars rover is still struggling with Flash memory after several months of controllers trying to work around frequent resets and amnesia events, according to a recent update.
The Opportunity rover is coming up on its 11th anniversary of landing on Mars, and is busy exploring the rim of Endeavour crater, en route to a region that could have clay minerals (showing evidence of water). But the rover has been dogged by frequent memory problems that forced a reformat in September, with only partial success.
While the updates have said the rover is still performing science, NASA says in a Dec. 4 to Dec. 9 update of the mission that the Flash memory was reformatted once again, and that controllers don’t plan to use any of it for the time being. Flash is useful because it retains data even when the rover is turned off. NASA is instead storing “data products” in RAM format.
“Longer term, the project is developing a strategy to mask off the troubled sector of Flash and resume using the remainder of the Flash file system,” NASA stated.
The Orion crew module was recovered Dec. 5, 2014 after splashdown in the Pacific Ocean about 600 miles off the coast of San Diego, California. Credit: U.S. Navy
After a brilliant first test flight, and historic Pacific Ocean splashdown and recovery on Dec. 5, 2014, NASA’s Orion spacecraft was brought onshore inside the USS Anchorage to the US Naval Base San Diego and has now been offloaded for the cross country trek back her home base in Florida.
Orion was off-loaded from the well deck of the USS Anchorage Monday night after the amphibious ship docked in San Diego.
NASA officials pronounced the two orbit, 4.5 hour flight maiden test flight of Orion on the Exploration Flight Test-1 (EFT-1) mission to be a complete success.
The EFT-1 spacecraft was recovered at sea, brought to land, and off-loaded by a combined team from NASA, the U.S. Navy, and Orion prime contractor Lockheed Martin.
NASA’s Orion spacecraft is being offloaded from the well deck of the USS Anchorage at Naval Base San Diego in California and has been secured in its crew module recovery cradle to prepare for return to Kennedy Space Center in Florida. Credit: NASA/Amber Philman
Years of planning, rehearsals, and hard work on land, in the air, and at sea paid off handsomely for the Orion Recovery Team, led by the Ground Systems Development and Operations Program (GSDO) based at NASA’s Kennedy Space Center in Florida.
“The recovery of Orion was flawless,” said Jeremy Graeber, NASA recovery director. “We wanted to be patient, take our time. We didn’t rush.”
Navy teams in Zodiac boats had attached a collar and winch line to Orion at sea and then safely towed it into the flooded well deck of the USS Anchorage and positioned it over rubber “speed bumps.”
Next they secured Orion inside its recovery cradle and transported it back to US Naval Base San Diego where it was off-loaded from the USS Anchorage.
Orion has now been moved about a mile to the “Mole Pier” where Lockheed Martin has conducted the first test inspection of the crew module and collected test data.
The Orion crew module is being moved into a covered structure at the Mole Pier at Naval Base San Diego in California where it will be prepared for return to NASA’s Kennedy Space Center in Florida. Orion was secured on its crew module recovery cradle in the well deck of the USS Anchorage after it was recovered from the Pacific Ocean. Credit: NASA/Cory Huston
Next, it was placed into the crew module transportation fixture with a rigorous environmental control system and generator to ensure the crew module’s safety during transport.
Orion will be hauled on a flatbed truck across the US for a nearly two-week trip back to Kennedy where it will arrive just in time for the Christmas holidays.
Technicians at KSC will examine every nook and cranny of Orion, and will disassemble it for up close inspection and lessons learned.
NASA’s first Orion spacecraft blasts off at 7:05 a.m. atop United Launch Alliance Delta 4 Heavy Booster at Space Launch Complex 37 (SLC-37) at Cape Canaveral Air Force Station in Florida on Dec. 5, 2014. Launch pad remote camera view. Credit: Ken Kremer – kenkremer.com
Stay tuned here for Ken’s continuing Earth and planetary science and human spaceflight news.
Apollo 17 commander Eugene Cernan with the lunar rover in December 1972, in the moon's Taurus-Littrow valley. Credit: NASA
For a brief period in the 1960s and 1970s, 12 people ventured all the way to the surface of the Moon. The accomplishment at the time was hailed as a political victory over the Soviet Union, but as decades have passed the landings have taken on more symbolic meaning with NASA — a time of optimism, of science and of the American spirit.
The last lunar landing was Apollo 17, which took place on Dec. 11, 1972. Commander Eugene Cernan and lunar module pilot Harrison Schmitt did three moonwalks in the Taurus-Littrow valley, scoping out the highlands to try to get a geologic sense of the area. Among their more memorable findings are orange soil. You can see some pictures from their sojourn below.
Apollo 17’s Saturn V rocket poised on the launch pad before its Dec. 7, 1972 takeoff. Credit:Apollo 17’s lunar rover, flag and part of the lunar module in this view taken out the module’s window. Credit: NASAApollo 17 commander Gene Cernan with a gravimeter experiment. The lunar rover is at right. Credit; NASAOrange soil (from volcanic glass beads) is clearly visible in this image from Apollo 17. Credit: NASAThe Apollo 17 command module America and its service module, as photographed by the returning lunar module Challenger. Credit: NASA
NASA’s Mars bound MAVEN spacecraft launches atop Atlas V booster at 1:28 p.m. EST from Space Launch Complex 41 at Cape Canaveral Air Force Station on Nov. 18, 2013. Image taken from the roof of the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center. Credit: Ken Kremer/kenkremer.com
A United Launch Alliance Altas V 401 rocket like that shown here will launch the next Orbital Sciences Cygnus cargo ship to the space station in place of the Antares rocket. NASA’s Mars-bound MAVEN spacecraft launches atop Atlas V booster at 1:28 p.m. EST from Space Launch Complex 41 at Cape Canaveral Air Force Station on Nov. 18, 2013. Image taken from the roof of the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center. Credit: Ken Kremer/kenkremer.com
More photos added[/caption]
Following the catastrophic Oct. 28 failure of an Orbital Sciences Corporation Antares rocket on a critical resupply mission to the space station for NASA, the company is seeking to quickly make up the loss to NASA by announcing the selection of the venerable Atlas V rocket built by United Launch Alliance to launch Orbital’s next Cygnus cargo ship to the orbital science lab.
Orbital and ULA signed a contract to launch at least one, and up to two, Cygnus cargo missions to the International Space Station (ISS) under NASA’s Commercial Resupply Services (CRS) program.
The first Cygnus mission would liftoff sometime late in the fourth quarter of 2015 aboard an Atlas V 401 vehicle from Space Launch Complex 41 (SLC-41) at Cape Canaveral Air Force Station in Florida.
Given that ULA’s full launch manifest was fairly full for the next 18 months, Orbital is fortunate to have arranged one or two available launch slots so quickly in the wake of the Antares launch disaster.
“Orbital is pleased to partner with ULA for these important cargo missions to the International Space Station,” said Frank Culbertson, Orbital executive vice president and general manager of its Advanced Programs Group.
“ULA’s ability to integrate and launch missions on relatively short notice demonstrates ULA’s manifest flexibility and responsiveness to customer launch needs.”
Antares’ doomed descent to incendiary destruction after the first stage propulsion system of Orbital Sciences’ rocket exploded moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014. Credit: Ken Kremer – kenkremer.com
Orbital also stated that there will be “no cost increase to the space agency” by utilizing the Atlas V as an interim launcher.
If necessary, a second Cygnus would be launched by the Atlas V in 2016.
The 401 version of the Atlas uses a 4 meter diameter payload fairing, no solid rocket boosters strapped on to the first stage, and a single-engine Centaur upper stage.
This Cygnus launched atop Antares on Jan. 9 and docked on Jan. 12 Cygnus pressurized cargo module – side view – during exclusive visit by Ken Kremer/Universe Today to observe prelaunch processing by Orbital Sciences at NASA Wallops, VA. ISS astronauts will open this hatch to unload 2780 pounds of cargo. Docking mechanism hooks and latches to ISS at left. Credit: Ken Kremer – kenkremer.com
Orbital had been evaluating at least three different potential launch providers.
Observers speculated that in addition to ULA, the other possibilities included a SpaceX Falcon 9 or a rocket from the European Space Agency at the Guiana Space Center.
“We could not be more honored that Orbital selected ULA to launch its Cygnus spacecraft,” said Jim Sponnick, vice president, Atlas and Delta Programs.
“This mission was awarded in a highly competitive environment, and we look forward to continuing ULA’s long history of providing reliable, cost-effective launch services for customers.”
The Orbital-3, or Orb-3, mission that ended in disaster on Oct. 28 was to be the third of eight cargo resupply missions to the ISS through 2016 under the NASA Commercial Resupply Services (CRS) contract award valued at $1.9 Billion.
The highly anticipated launch of the Antares rocket on Oct 28 suddenly went awry when one of the Soviet-era first stage engines unexpectedly exploded and cascaded into a spectacular aerial fireball just above the launch pad at NASA’s Wallops Flight Facility on the Orb-3 mission to the ISS.
Read my earlier eyewitness accounts at Universe Today.
First stage propulsion system at base of Orbital Sciences Antares rocket appears to explode moments after blastoff from NASA’s Wallops Flight Facility, VA, on Oct. 28, 2014, at 6:22 p.m. Credit: Ken Kremer – kenkremer.com
Orbital was awarded a $1.9 Billion contract with NASA under the CRS program to deliver 20,000 kilograms of research experiments, crew provisions, spare parts, and hardware for the eight ISS flights.
In choosing the Atlas V with a greater lift capacity compared to Antares, Orbital will also be able to significantly increase the cargo mass loaded inside the Cygnus by about 35%.
This may allow Orbital to meet its overall space station payload obligation to NASA in 7 total flights vs. the originally planned 8.
The venerable Atlas V rocket is one of the most reliable and well built rockets in the world.
The next Orbital Sciences Cygnus cargo ship to the space station will launch inside a 4m diameter payload firing, as shown here, on a United Launch Alliance Altas V 401 rocket used for NASA’s MAVEN. NASA’s Mars-bound MAVEN spacecraft atop Atlas V booster rolls out to Launch Complex 41 at Cape Canaveral Air Force Station on Nov. 16, 2013. Credit: Ken Kremer/kenkremer.com
Indeed the Atlas V has been entrusted to launch many high value missions for NASA and the Defense Department – such as MAVEN, Curiosity, JUNO, TDRSS, and the X-37 B.
MAVEN launched on a similar 401 configuration being planned for Cygnus.
The two-stage Atlas rocket is also being man-rated right now to launch humans to low Earth orbit in the near future.
Orbital is still in the process of deciding on a new first stage propulsion system for Antares’ return to flight planned for perhaps sometime in 2016.
Watch here for Ken’s ongoing reporting about Antares and NASA Wallops.
Stay tuned here for Ken’s continuing Earth and Planetary science and human spaceflight news.
Soviet era NK-33 engines refurbished as the AJ26 exactly like pictured here probably caused Antares’ rocket failure on Oct. 28, 2014. Orbital Sciences technicians at work on two AJ26 first stage engines at the base of an Antares rocket during exclusive visit by Ken Kremer/Universe Today at NASA Wallaps. These engines powered the successful Antares liftoff on Jan. 9, 2014 at NASA Wallops, Virginia bound for the ISS. Credit: Ken Kremer – kenkremer.com
A false-color image of part of Cerberus Fossae on Mars. The view shows two rifts intersecting with each other, with sand (in deep blue) and dust. Credit: NASA/JPL-Caltech/University of Arizona/Western University Planetary Sciences Division
Here’s the awesome thing about space and social media: in some cases, you can often follow along with a mission almost as soon as the images come to Earth. A group of Canadians is taking that to the next level this month as they take control of the 211th imaging cycle of a powerful camera on the Mars Reconnaissance Orbiter.
While some images need to be kept back for science investigations, the team is sharing several pictures a day on Twitter and on Facebook portraying the views they saw coming back from the High Resolution Imaging Science Experiment (HiRISE) camera. The results are astounding, as you can see in the images below.
“It’s mind-blowing to realize that when the team, myself included, first look at the images, we are likely the first people on Earth to lay eyes upon a portion of the Martian surface that may have not been imaged before at such high resolution,” stated research lead Livio Tornabene, who is part of Western University’s center for planetary science and exploration.
The team will capture up to 150 images between Nov. 30 and Dec. 12, and already have released close to two dozen to the public. Some of the best are below.
.@HiRISE image ESP_039152_1450 Tongue-shaped feature on south mid-latitude crater; Mars sticking its tongue out at us pic.twitter.com/F5LeG5e03m
— Western Mars Imaging (@westernuMars) December 5, 2014
— Western Mars Imaging (@westernuMars) December 5, 2014
Beautiful two-toned ejecta impact crater on Mars! Another lovely image brought to you by @HiRISE#WesternU 🙂 pic.twitter.com/q0FY2r6q8Y — Western Mars Imaging (@westernuMars) December 8, 2014
— Western Mars Imaging (@westernuMars) December 5, 2014
.@HiRISE image ESP_039149_1475 Gully monitoring in crater; looking for various changes over time. #WesternU#LdnOntpic.twitter.com/0DiXo7xrbd — Western Mars Imaging (@westernuMars) December 5, 2014
