Just look at that new video from NASA showing the first moon landing site in three dimensions. It’s tempting to touch on the surface nearby the Eagle lander there in the center and do some prospecting.
You’ll notice a lot of craters in that video, which is based on Lunar Reconnaissance Orbiter data. Across the moon’s surface, a separate study saw the spacecraft investigate 200 extremely steep-walled craters, known as “pits”.
These would be fascinating places to send astronauts for scientific study. Not only that, they’re actually one of the safest spots possible on the moon, according to a new study.
“Pits would be useful in a support role for human activity on the lunar surface,” stated lead researcher Robert Wagner of Arizona State University.
“A habitat placed in a pit — ideally several dozen meters back under an overhang — would provide a very safe location for astronauts: no radiation, no micrometeorites, possibly very little dust, and no wild day-night temperature swings.”
And if you look at the picture below, you can see at least one of those pits is in the Sea of Tranquility — the approximate landing area where Apollo 11 touched down 45 years ago this week. The pits were found mainly using a computer algorithm that scanned LRO photos, although a few of the craters were previously identified with the Japanese Kaguya spacecraft.
Large craters or lunar “seas” (ancient, solidified lava flows) are the locations where most of these pits are found. How they were formed is being investigated, but there are some hypotheses. Perhaps a meteorite impact caused a collapse, or perhaps molten rock flows under the surface gradually lost their lava, leaving voids.
To learn more, the researchers say more LRO images would be great (only 40% of the surface imaged had the appropriate lighting conditions for this study) and in the future, we’d need to get much closer-up than pictures taken from orbit.
“The ideal follow-up, of course, would be to drop probes into one or two of these pits, and get a really good look at what’s down there,” added Wagner.
“Pits, by their nature, cannot be explored very well from orbit — the lower walls and any floor-level caves simply cannot be seen from a good angle. Even a few pictures from ground-level would answer a lot of the outstanding questions about the nature of the voids that the pits collapsed into. We’re currently in the very early design phases of a mission concept to do exactly this, exploring one of the largest mare pits.”
Following a nearly three day journey, an Orbital Sciences Corp. Cygnus commercial cargo freighter carrying a ton and a half of science experiments and supplies for the six person crew was successfully installed onto the International Space Station at 8:53 a.m. EDT this morning, July 16, after a flawless arrival and being firmly grasped by station astronauts deftly maneuvering the Canadarm2 robotic arm some two hours earlier.
Cygnus was captured in open space at 6:36 a.m. EDT by Commander Steve Swanson as he maneuvered the 57-foot (17-meter) Canadarm2 from a robotics workstation inside the station’s seven windowed domed Cupola, after it was delicately flown on an approach vector using GPS and LIDAR lasers to within about 32 feet (10 meters) of the massive orbiting complex.
Swanson was assisted by ESA astronaut and fellow Expedition 40 crew member Alexander Gerst working at a hardware control panel.
“Grapple confirmed” radioed Houston Mission Control as the complex soared in low orbit above Earth at 17500 MPH.
“Cygnus is captured as the ISS flew 260 miles (400 km) over northern Libya.”
Cygnus by the book arrival at the million pound orbiting laboratory coincided with the 45th anniversary of the launch of Apollo 11 on July 16, 1969 on America’s first manned moon landing mission.
This mission dubbed Orbital-2, or Orb-2, marks the second of eight operational cargo resupply missions to the ISS under Orbital’s Commercial Resupply Services (CRS) contract with NASA.
The supplies are critical to keep the station flying and humming with research investigations.
The supply ship thrusters all worked perfectly normal during rendezvous and docking to station with streaming gorgeous views provided by the stations new high definition HDEV cameras.
“We now have a seventh crew member. Janice Voss is now part of Expedition 40,” radioed Swanson.
“Janice devoted her life to space and accomplished many wonderful things at NASA and Orbital Sciences, including five shuttle missions. And today, Janice’s legacy in space continues. Welcome aboard the ISS, Janice.”
The Cygnus spacecraft was christened “SS Janice Voss” in honor of Janice Voss who flew five shuttle missions during her prolific astronaut carrier, worked for both NASA and Orbital Sciences and passed away in February 2012.
A robotics officer at Mission Control in Houston then remotely commanded the arm to move Cygnus into place for its berthing at the Earth-facing port on the Harmony module.
Once Cygnus was in place at the ready to latch (RTF) position, NASA astronaut and Flight Engineer Reid Wiseman monitored the Common Berthing Mechanism operations and initiated the first and second stage capture of the cargo ship to insure the craft was firmly joined.
The hard mate was completed at 8:53 a.m. EDT as the complex was flying about 260 miles over the east coast of Australia. 16 bolts were driven to firmly hold Cygnus in place to the station.
“Cygnus is now bolted to the ISS while flying 260 miles about the continent of Australia,” confirmed Houston Mission Control.
Cygnus roared to orbit during a spectacular blastoff on July 13 atop an Orbital Sciences Corp. Antares rocket on the Orb-2 mission at 12:52 p.m. (EDT) from the beachside Pad 0A at the Mid-Atlantic Regional Spaceport on NASA’s Wallops Flight Facility on the Eastern Shore of Virginia.
The US/Italian built pressurized Cygnus cargo freighter delivered 1,657 kg (3653 lbs) of cargo to the ISS Expedition 40 crew including over 700 pounds (300 kg) of science experiments and instruments, crew supplies, food, water, computer equipment, spacewalk tools and student research experiments.
The crew will begin work today to remove the Centerline Berthing Camera System that provided the teams with a view of berthing operations through the hatch window.
Swanson will then pressurize and outfit the vestibule area between Harmony and Cygnus. After conducting leak checks they will open the hatch to Cygnus either later today or tomorrow and begin the unloading process, including retrieving a stash of highly desired fresh food.
The wide ranging science cargo and experiments includes a flock of 28 Earth imaging nanosatellites and deployers, student science experiments and small cubesat prototypes that may one day fly to Mars.
“Every flight is critical,” said Frank Culbertson, Orbital’s executive vice president of the advanced programs group, at a post launch briefing at NASA Wallops. Culbertson was a NASA shuttle commander and also flew aboard the International Space Station (ISS).
“We carry a variety of types of cargo on-board, which includes food and basic supplies for the crew, and also the research.”
The cargo mission was crucial since the crew supply margin would have turned uncomfortably narrow by the Fall of 2014.
Cygnus will remain attached to the station approximately 30 days until August 15.
For the destructive and fiery return to Earth, the crew will load Cygnus with approximately 1,340 kg (2950 lbs) of trash for disposal upon atmospheric reentry over the Pacific Ocean approximately five days later after undocking.
The Orb-2 launch was postponed about a month from June 9 to conduct a thorough re-inspection of the two Russian built and US modified Aerojet AJ26 engines that power the rocket’s first stage after a test failure of a different engine on May 22 at NASA’s Stennis Space Center in Mississippi resulted in extensive damage.
The July 13 liftoff marked the fourth successful launch of the 132 foot tall Antares in the past 15 months, Culbertson noted.
The first Antares was launched from NASA Wallops in April 2013. And the Orb-2 mission also marks the third deployment of Cygnus in less than a year.
Orbital Sciences was awarded a $1.9 Billion supply contract by NASA to deliver 20,000 kilograms (44,000 pounds) of research experiments, crew provisions, spare parts and hardware for 8 flights to the ISS through 2016 under the Commercial Resupply Services (CRS) initiative.
Stay tuned here for Ken’s continuing ISS, OCO-2, GPM, Curiosity, Opportunity, Orion, SpaceX, Boeing, Orbital Sciences, MAVEN, MOM, Mars and more Earth & Planetary science and human spaceflight news.
Such great heights! A mountain chain peeks in the background of this new view of Hellas Basin, based on information taken by a European spacecraft circling the Red Planet.
Beyond the pretty picture is a tale of how snow behaved on the Martian surface, according to the European Space Agency. The vast basin is about half the size of Brazil.
The wrinkled view of that crater in front is a product of snowing and freezing that took place when the Martian surface was wetter, ESA said.
“During this period, snow fell and covered the surface and later moved downhill into the crater. Once inside the crater, the snow became trapped and soon covered by surface dust, before compacting to form ice. The number of concentric lines indicates many cycles of this process and it is possible that craters like these may still be rich in ice hidden beneath just tens of metres of surface debris.”
Additionally, the high hill chain in the back (called Hellespontus Montes) is a remnant of how Hellas basin was formed, the agency said.
“This feature is a product of the final stages of the formation of the vast Hellas impact basin itself, most likely as the basin walls – which were first pushed outwards by the extraordinary forces at work during the formation of the basin – later collapsed and sank inwards to create the observed stair-stepped shape.”
The image was taken by ESA’s Mars Express spacecraft, which is just one of several robotic emissaries circling the Red Planet.
Countdown! Just under one year from now, the New Horizons will finally reach its mission goal after sailing through the solar system for the better part of a decade. It will fly by the dwarf planet Pluto and its moons on July 14, 2015, showing us the surface of these distant bodies for the very first time.
And the New Horizon’s team reported a thruster burn yesterday has put the spacecraft right on course to correct the spacecraft’s arrival time – a year from now – at the precisely intended aim point at Pluto.
The spacecraft fired its thrusters for just under 88 seconds, which sped the craft up by about 3.8 km/h (2.4 miles per hour.)
“If we hadn’t performed this maneuver, we would have arrived at Pluto about 36 minutes later than we wanted to,” said Mark Holdridge, New Horizons encounter mission manager. “Making the adjustment now means we won’t have to perform a bigger maneuver – and use more of the spacecraft’s fuel – down the road.”
“It was a great burn, performed flawlessly” said Alan Stern, New Horizons principal investigator. “You could say that New Horizons just lit a little candle for its one year out anniversary.”
It was the spacecraft’s sixth course correction maneuver since launch in January 2006, and the first since 2010.
“Pluto gets closer by the day, and New Horizons continues into rare territory, as just the fifth probe to traverse interplanetary space so far from the sun,” said NASA on the New Horizon’s website. “And the first ever to travel to Pluto.”
It’ll be a treat to see what the dwarf planet looks like after so many tantalizing glimpses by the Hubble Space Telescope and New Horizons spacecraft itself (see this story from last week for some views.) Happy sailing!
NASA WALLOPS FLIGHT FACILITY, VA – Following further weather delays this week Orbital Sciences Corp. commercial Antares rocket is at last set to soar to space at lunchtime Sunday, July 13, from a beachside launch pad in Virginia carrying a private Cygnus cargo freighter loaded with a diverse array of science experiments including a flock of nanosatellites and deployers, student science experiments and small cubesat prototypes that may one day fly to Mars.
The privately developed Antares rocket is on a critical cargo resupply mission – named Orb-2 – bound for the International Space Station (ISS) and now targeting liftoff at 12:52 p.m. on July 13 from Launch Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) at NASA Wallops Island on Virginia’s Eastern shore.
Severe thunderstorms up and down the US East coast forced two consecutive postponements this week from the Atlantic Ocean region launch pad at NASA’s Wallops Flight Facility, VA, from July 11 to July 13.
“Orbital’s launch team has made great progress in preparing the rocket for the Orb-2 mission, which will be the fourth flight of Antares in the past 15 months,” Orbital said in a statement.
“However, severe weather in the Wallops area has repeatedly interrupted the team’s normal operational schedule leading up to the launch. As a result, these activities have taken longer than expected. Orbital has decided to postpone the Orb-2 mission by an additional day in order to maintain normal launch operations processing.”
The pressurized Cygnus cargo freighter will deliver 1,657 kg (3653 lbs) of cargo to the ISS Expedition 40 crew including over 700 pounds (300 kg) of science experiments and instruments, crew supplies, food, water, computer equipment, spacewalk tools and student research experiments.
A flock of 28 nanosatellites from Planet Labs of San Francisco are aboard to take pictures of Earth.
After deployment from the Japanese JEM module they will form “the largest constellation of imaging satellites in Earth orbit,” said Robbie Schingler, Co-Founder of PlanetLabs.
“The individual satellites will take images that will be combined into a whole Earth mosaic,” Schingler told me in an interview at Wallops.
15 student experiments on the “Charlie Brown” mission are aboard and hosted by the Student Spaceflight Experiment Program, an initiative of the National Center for Earth and Space Science Education (NCESSE) and NanoRacks.
“The student experiments were chosen from over 1000 proposals from Grades 5 to 12,” said Jeff Goldstein, NCESSE director.
They will investigate plant, lettuce, raddish and mold growth and seed germination in zero-G, penecilium growth, corrosion inhibitors, oxidation in space and microencapsulation experiments.
The TechEdSat-4 is a small cubesat built by NASA’s Ames Research Center in California that will investigate technology to return small samples to Earth from the space station.
The weather prognosis is very favorable with a 90% chance of acceptable weather at launch time during the 5 minute window.
The Antares/Cygnus Orbital-2 (Orb-2) mission is the second of eight cargo resupply missions to the ISS under Orbital’s Commercial Resupply Services (CRS) contract with NASA.
NASA will broadcast the Antares launch live on NASA TV starting at 12 Noon – http://www.nasa.gov/nasatv
Depending on local weather conditions, portions of the daylight liftoff could be visible to millions of spectators along the US Eastern seaboard stretching from South Carolina to Massachusetts.
Here’s a viewing map:
The best viewing will be in the mid-Atlantic region closest to Wallops Island.
Locally at Wallops you’ll get a magnificent view and hear the rockets thunder at either the NASA Wallops Visitor Center or the Chincoteague National Wildlife Refuge/Assateague National Seashore.
For more information about the Wallops Visitors Center, including directions, see: http://www.nasa.gov/centers/wallops/visitorcenter
NASA will have special “countdown speakers” set up at the NASA Wallops Visitor Center, Chincoteague National Wildlife Refuge/Assateague National Seashore and Ocean City inlet.
Orbital Sciences was awarded a $1.9 Billion supply contract by NASA to deliver 20,000 kilograms of research experiments, crew provisions, spare parts and hardware for 8 flight to the ISS through 2016 under the Commercial Resupply Services (CRS) initiative.
The July mission marks the second operational Antares/Cygnus flight.
The two stage Antares rocket stands 132 feet tall. It takes about 10 minutes from launch until separation of Cygnus from the Antares vehicle.
SpaceX has a similar resupply contract using their Falcon 9 rocket and Dragon cargo carrier and just completed their 3rd operational mission to the ISS in May.
Watch for Ken’s onsite Antares Orb-2 mission reports from NASA Wallops, VA.
Stay tuned here for Ken’s continuing ISS, OCO-2, GPM, Curiosity, Opportunity, Orion, SpaceX, Boeing, Orbital Sciences, MAVEN, MOM, Mars and more Earth & Planetary science and human spaceflight news.
Learn more about NASA’s Mars missions and Orbital Sciences Antares ISS launch on July 13 from NASA Wallops, VA in July and more about SpaceX, Boeing and commercial space and more at Ken’s upcoming presentations.
July 11/12/13: “Antares/Cygnus ISS Launch from Virginia” & “Space mission updates”; Rodeway Inn, Chincoteague, VA, evening
Orbital 2 Launch from NASA Wallops Island, VA on July 12, 2014- Time of First Sighting Map
This map shows the rough time at which you can first expect to see Antares after it is launched on July 12, 2014. It represents the time at which the rocket will reach 5 degrees above the horizon and varies depending on your location . We have selected 5 degrees as it is unlikely that you’ll be able to view the rocket when it is below 5 degrees due to buildings, vegetation, and other terrain features. As an example, using this map when observing from Washington, DC shows that Antares will reach 5 degrees above the horizon more after than a minute. Credit: Orbital Sciences
See more trajectory viewing maps and NASA TV broadcast link below Story updated[/caption]
NASA WALLOPS FLIGHT FACILITY, VA – Catching a break from nearly relentless and damaging thunderstorms along the US East coast, Orbital Sciences Corp. was finally able to roll their commercial Antares rocket out to its beachside launch pad at NASA Wallops Flight Facility, VA, early this morning, July 10, following a weather postponement that pushed the scheduled liftoff back by one day to Saturday, July 12 from Friday, July 11.
UPDATE: Orbital Sciences Corp. has postponed the launch of its Cygnus cargo spacecraft to the International Space Station until 12:52 p.m. EDT on Sunday, July 13, from the Mid-Atlantic Regional Spaceport’s Pad 0A at NASA’s Wallops Flight Facility in Virginia. Severe weather in the Wallops area has repeatedly interrupted Orbital’s operations schedule leading up to the launch.
The long delayed blastoff of the privately developed Antares rocket on a critical cargo mission bound for the International Space Station (ISS) and packed with science experiments is now slated for 1:14 p.m. on July 12 12:52 p.m. EDT on Sunday, July 13 from Launch Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) at NASA Wallops Island on Virginia’s Eastern shore.
Antares is carrying the Orbital Sciences Cygnus cargo logistics spacecraft to orbit on the Orbital-2 (Orb-2) mission. It is the second of eight cargo resupply missions to the ISS under Orbital’s Commercial Resupply Services (CRS) contract with NASA.
Here’s our complete guide on “How to See the Antares/Cygnus July 12 Blastoff” – chock full of viewing maps and trajectory graphics (above and below) from a variety of prime viewing locations; including historic and notable landmarks in Philadelphia, Washington, DC., NYC, New Jersey, Virginia and more.
If you have never seen a rocket launch, this one could be for you especially since it’s now on the weekend and you don’t have to take the long trek to the Kennedy Space Center in Florida.
Depending on local weather conditions, portions of the daylight liftoff could be visible to millions of spectators along the US Eastern seaboard stretching from South Carolina to Massachusetts.
The launch window on Sunday, July 13 opens at 12:52 p.m. for a duration of 5 minutes.
In the event of a delay for any reason the next available launch opportunity is Sunday, July 13 at 12:52 p.m.
The weather prognosis for both days this weekend is currently excellent.
The weather forecast shows a probability of acceptable weather at 80% GO on Saturday and improves to 90% GO on Sunday. Of course the weather can change on a dime.
Certainly the best viewing of all will be in the mid-Atlantic region closest to Wallops Island.
So if you have the opportunity to observe the launch locally, you’ll get a magnificent view and hear the rockets thunder at either the NASA Wallops Visitor Center or the Chincoteague National Wildlife Refuge/Assateague National Seashore.
For more information about the Wallops Visitors Center, including directions, see: http://www.nasa.gov/centers/wallops/visitorcenter
NASA will have special “countdown speakers” set up at the NASA Wallops Visitor Center, Chincoteague National Wildlife Refuge/Assateague National Seashore and Ocean City inlet.
The Orb-2 launch was postponed about a month from June 10 to conduct a thorough re-inspection of the two Russian built and US modified Aerojet AJ26 engines that power the rocket’s first stage after a test failure of a different engine on May 22 at NASA’s Stennis Space Center in Mississippi resulted in extensive damage.
I was granted a visit to the Orbital Sciences Antares rocket integration facility at NASA Wallops recently as the engine re-inspection work by Aerojet engineers was winding down and ultimately resulted in approval to launch. See my Antares/Cygnus Orb-2 rocket photos herein.
The pressurized Cygnus cargo freighter will deliver 1,657 kg (3653 lbs) of cargo to the ISS including science experiments and instruments, crew supplies, food, water, computer equipment, spacewalk tools and student research experiments.
Cygnus will remain berthed at the station for 40 days.
For the destructive and fiery return to Earth, Cygnus will be loaded with approximately 1,346 kg (2967 lbs) of trash for disposal upon atmospheric reentry.
Despite the 1 day delay, an on time launch on Saturday will still result in Cygnus arrival at the ISS on July 15. The flight time to the ISS reduced from approximately 3 days to 2 days.
Station commander Steven Swanson of NASA and Flight Engineer Alexander Gerst of the European Space Agency (ESA) will grapple and berth Cygnus using the stations 57 foot-long robotic arm onto the Earth-facing port of the station’s Harmony module.
Orbital Sciences was awarded a $1.9 Billion supply contract by NASA to deliver 20,000 kilograms of research experiments, crew provisions, spare parts and hardware for 8 flight to the ISS through 2016 under the Commercial Resupply Services (CRS) initiative.
The July mission marks the second operational Antares/Cygnus flight.
The two stage Antares rocket stands 133 feet tall. It takes about 10 minutes from launch until separation of Cygnus from the Antares vehicle.
SpaceX has a similar resupply contract using their Falcon 9 rocket and Dragon cargo carrier and just completed their 3rd operational mission to the ISS in May.
Watch for Ken’s onsite Antares Orb-2 mission reports from NASA Wallops, VA.
Stay tuned here for Ken’s continuing ISS, OCO-2, GPM, Curiosity, Opportunity, Orion, SpaceX, Boeing, Orbital Sciences, MAVEN, MOM, Mars and more Earth & Planetary science and human spaceflight news.
Learn more about NASA’s Mars missions and Orbital Sciences Antares ISS launch on July 12 from NASA Wallops, VA in July and more about SpaceX, Boeing and commercial space and more at Ken’s upcoming presentations.
July 11/12: “Antares/Cygnus ISS Launch from Virginia” & “Space mission updates”; Rodeway Inn, Chincoteague, VA, evening
Up for a little abstract art, anyone? The latest images of the nucleus of Rosetta’s comet makes it look like the celestial object is a kidney. Or perhaps a bean. But regardless of what you “see” in the shape, scientists agree that the comet’s heart certainly isn’t round.
It’s a tantalizing view as the spacecraft speeds towards Comet 67P/Churyumov-Gerasimenko for an August rendezvous. These pictures were taken just a few days ago from 23,000 miles (37,000 kilometers) away, and the spacecraft is drawing noticeably nearer every week. What will a closer view reveal?
“Irregular, elongated, and structured shapes are not uncommon for small bodies such as asteroids and comets,” stated the Max Planck Institute for Solar System Research in a release. “Of the five cometary nuclei that have been visited by spacecraft in close flybys so far, all are far from spherical.”
To illustrate, we’ve put some examples below of the other comets that have had close-up views:
The new pictures from Rosetta come shortly after the spacecraft caught its comet tumbling through space. It’s not really known for sure what the nucleus will look like, although several artists have lent their ideas over the years. Luckily, the European Space Agency probe will give us a very close-up view of the comet, as it plans to deploy a lander called Philae to land on the comet’s surface in November.
Both Rosetta and Philae successfully awoke from hibernation earlier this year and all systems appear to be working well so far as they get ready for the close-up encounter with the comet. The spacecraft have been flying through space for about a decade, and will remain with Comet 67P/Churyumov-Gerasimenko as it sweeps to its closest approach to the sun in 2015, between the orbits of Earth and Mars.
In a live webcast, The Planetary Society CEO Bill Nye announced that its long-awaited LightSail solar sail mission will launch to Earth orbit on a SpaceX Falcon Heavy, currently scheduled for an April 2016 liftoff. LightSail-1 and its parent satellite, Prox-1, will be on the same launch vehicle as the U.S. Air Force’s Space Test Program 2 (STP-2) mission. If successful, it will be the first CubeSat to demonstrate controlled solar sailing.
“It’s fantastic that at last we have a launch date for this pioneering mission,” said Nye.
The Planetary Society has raised over $4 million for the mission, but according to Jason Davis from TPS, the launch costs will be paid by the USAF and Georgia Institute of Technology, which developed the Prox-1, a technology demonstration for using small satellites to autonomously inspect other spacecraft.
LightSail will go to an orbit about 720 km above Earth, stored inside the Prox-1, which was developed by the Georgia Institute of Technology to demonstrate new technologies enabling two spacecraft to work in close proximity. After ejecting LightSail, the largely student-built Prox-1 will track and image LightSail, including the sail deployment.
Here’s the LightSail-1 mission trailer:
According to TPS, cubesats utilize a standard design based on 10-centimeter (about 4-inch) cubes. LightSail is three cubes, or just 30 centimeters long. Tucked inside this tiny package are four ultra-thin Mylar sails that will be deployed a few weeks after orbital insertion. The reflective wings will expand to 32 square meters (344 square feet), making LightSail easily visible to naked eye observers on Earth.
There might be a test flight of a prototype LightSail-A on a smaller rocket, perhaps in 2015. This flight will only reach low earth orbit, where the atmosphere is too thick for a solar sail to function, but it will allow the LightSail team to check the operation of vital systems in the extreme environment of space. That team includes faculty and students at California Polytechnic State University in San Luis Obispo.
While the test flight would only stay in orbit for a week or so, the 2016 main LightSail mission should remain in orbit for several years.
Solar sails are not new, and have already been launched and deployed in space, but have had limited success. The Japanese Ikaros satellite unfurled a 14-meter solar sail back in 2010. NASA launched the Nanosail-D spacecraft in 2011 and is expected to launch the Sunjammer solar sail in early 2015.
A spacecraft propelled by a solar sail uses the sail to capture photons emitted from the Sun. Over time, the buildup of the solar photons provides enough thrust for a small spacecraft to travel in space. Solar sails could one day be an alternative to conventional propellant-based spacecraft.
The Planetary Society has a long history of solar sail activity. In June 2005, the Society attempted to launch Cosmos 1, which would have been the first solar sail in space. The failure of a Russian booster doomed that effort, but then proceeded with fundraising for the Lightsail mission.
NASA WALLOPS FLIGHT FACILITY, VA – The long delayed liftoff of an Orbital Sciences Corp. commercial Antares rocket on a cargo mission bound for the International Space Station (ISS) has been cleared for blastoff this Friday, July 11, from the Eastern shore of Virginia, following a thorough re-inspection of the two Russian built and US modified AJ26 engines that power the rocket’s first stage after the test failure of a different engine in May.
The critically important Aerojet Rocketdyne AJ26 engine re-inspection was mandated following the significant failure of another AJ26 engine during acceptance testing on May 22 at NASA’s Stennis Space Center in Mississippi to investigate any concerns and insure against an in flight failure.
NASA and Orbital Sciences are now targeting the Antares launch carrying the privately developed Cygnus resupply freighter on the Orb-2 mission from Pad 0A at the Mid-Atlantic Regional Spaceport (MARS) at NASA’s Wallops Flight Facility, Virginia, on July 11 at 1:40 p.m. (EDT).
Universe Today was granted a visit to the Orbital Sciences Antares rocket integration facility at NASA Wallops recently as the engine re-inspection work was winding down. See my Antares/Cygnus Orb-2 rocket photos herein.
Aerojet engineers re-inspected the engines while they were still mated to the bottom of the Antares rocket and found them to be satisfactory for fight. No swap out was required.
The Cygnus cargo logistics spacecraft was then mated to the rocket on July 3 and will be rolled out to the Wallops launch pad on Wednesday morning at 8:30 a.m., July 9.
Late stow items including time sensitive science experiments will be packed aboard on Tuesday, July 8.
The launch window on July 11 opens at 1:40 p.m. for a duration of 5 minutes.
In the event of a delay for any reason the next available launch opportunity is July 12 at 1:14 p.m.
Until the first stage engine failure, this Antares rocket had been slated to blastoff on June 10 with the Cygnus cargo freighter on the Orb-2 mission which is the second of eight cargo resupply missions to the ISS under Orbital’s Commercial Resupply Services (CRS) contract with NASA.
The AJ26 rocket engine that failed in May was extensively damaged about halfway through the planned test aimed at qualifying the engine for an Antares flight scheduled for early next year.
“There was a test failure at Stennis on May 22,” Orbital Sciences spokesman Barry Beneski told Universe Today at that time. “Engineers are examining data to determine the cause of the failure.”
The failure occurred approximately 30 seconds into the planned 54-second test.
“It terminated prematurely, resulting in extensive damage to the engine,” Orbital said in a statement in May.
The pressurized Cygnus spacecraft will deliver 1,657 kg of cargo to the ISS including science experiments and instruments, crew supplies, food, water, computer equipment, spacewalk tools and student research experiments.
Cygnus will remain berthed at the station for 40 days.
For the return to Earth it will be loaded with approximately 1,346 kg of material for disposal upon atmospheric reentry.
The two stage Antares rocket stands 133 feet tall.
It takes about 10 minutes from launch until separation of Cygnus from the Antares vehicle.
Flight time to the ISS is approximately 3 days. An on time launch will result in Cygnus arrival at the ISS on July 15.
Station commander Steven Swanson of NASA and Flight Engineer Alexander Gerst of the European Space Agency (ESA) will grapple and berth Cygnus using the stations 57 foot-long robotic arm onto the Earth-facing port of the station’s Harmony module.
The Antares first stage is powered by a pair of liquid oxygen and kerosene fueled AJ26-62 engines that deliver a combined 734,000 pounds (3265 kilonewtons) of sea level thrust.
To date the AJ26 engines have performed flawlessly through a total of three Antares launches from NASA’s Wallops Flight Facility in Virginia starting in April 2013.
They measure 3.3 meters (10.9 feet) in height and weigh 1590 kg (3,500 lb.).
The AJ26 engines were originally known as the NK-33 and built during the 1960s and 1970s in the Soviet Union for their manned moon landing program.
Aerojet extensively modified, checked and tested the NK-33 engines now designated as the AJ26-62 to qualify them for use in the first stage Antares core, which is manufactured in Dnipropetrovsk, Ukraine by the Yuznoye Design Bureau and based on the Zenit launch vehicle.
Orbital Sciences was awarded a $1.9 Billion supply contract by NASA to deliver 20,000 kilograms of research experiments, crew provisions, spare parts and hardware for 8 flight to the ISS through 2016 under the Commercial Resupply Services (CRS) initiative.
The July mission marks the second operational Antares/Cygnus flight.
SpaceX has a similar resupply contract using their Falcon 9 rocket and Dragon cargo carrier and just completed their 3rd operational mission to the ISS in May.
Watch for Ken’s onsite Antares Orb-2 mission reports from NASA Wallops, VA.
Stay tuned here for Ken’s continuing ISS, OCO-2, GPM, Curiosity, Opportunity, Orion, SpaceX, Boeing, Orbital Sciences, MAVEN, MOM, Mars and more Earth & Planetary science and human spaceflight news.
Learn more about Orbital Sciences Antares ISS launch on July 11 from NASA Wallops, VA, and more about SpaceX, Boeing, commercial space, NASA’s Mars missions and more at Ken’s upcoming presentations.
July 10/11: “Antares/Cygnus ISS Launch from Virginia” & “Space mission updates”; Rodeway Inn, Chincoteague, VA, evening
The Orbiting Carbon Observatory-2, NASA’s first mission dedicated to studying carbon dioxide in Earth’s atmosphere, lifts off from Vandenberg Air Force Base, California, at 2:56 a.m. Pacific Time, July 2, 2014 on a Delta II rocket. The two-year mission will help scientists unravel key mysteries about carbon dioxide. Credit: NASA/Bill Ingalls
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Following a nearly three-year long hiatus, the workhorse Delta II rocket successfully launched NASA’s first spacecraft dedicated to watching Earth breathe by studying Earth’s atmospheric carbon dioxide (CO2) – the leading human-produced greenhouse gas and the principal human-produced driver of climate change.
The Orbiting Carbon Observatory-2 (OCO-2) raced to orbit earlier this morning, during a spectacular nighttime blastoff at 2:56 a.m. PDT (5:56 a.m. EDT), Tuesday, July 2, 2014, from Vandenberg Air Force Base, California, atop a United Launch Alliance Delta II rocket.
The flawless launch marked the ‘return to flight’ of the venerable Delta II and was broadcast live on NASA TV.
A camera mounted on the Delta II’s second stage captured a breathtaking live view of the OCO-2 spacecraft during separation from the upper stage, which propelled it into an initial 429-mile (690-kilometer) orbit.
The life giving solar arrays were unfurled soon thereafter and NASA reports that the observatory is in excellent health.
“Climate change is the challenge of our generation,” said NASA Administrator Charles Bolden in a statement.
“With OCO-2 and our existing fleet of satellites, NASA is uniquely qualified to take on the challenge of documenting and understanding these changes, predicting the ramifications, and sharing information about these changes for the benefit of society.”
Over the next three weeks the OCO-2 probe will undergo a thorough checkout and calibration process. It will also be maneuvered into a 438-mile (705-kilometer) altitude, near-polar orbit where it will become the lead science probe at the head of the international Afternoon Constellation, or “A-Train,” of Earth-observing satellites.
“The A-Train, the first multi-satellite, formation flying “super observatory” to record the health of Earth’s atmosphere and surface environment, collects an unprecedented quantity of nearly simultaneous climate and weather measurements,” says NASA.
Science operations begin in about 45 days.
The 999 pound (454 kilogram) observatory is the size of a phone booth.
OCO-2 is equipped with a single science instrument consisting of three high-resolution, near-infrared spec¬trometers fed by a common telescope. It will collect global measurements of atmospheric CO2 to provide scientists with a better idea of how CO2 impacts climate change and is responsible for Earth’s warming.
During a minimum two-year mission the $467.7 million OCO-2 will take near global measurements to locate the sources and storage places, or ‘sinks’, for atmospheric carbon dioxide, which is a critical component of the planet’s carbon cycle.
OCO-2 was built by Orbital Sciences as a replacement for the original OCO which was destroyed during the failed launch of a Taurus XL rocket from Vandenberg back in February 2009 when the payload fairing failed to open properly and the spacecraft plunged into the ocean.
The OCO-2 mission will provide a global picture of the human and natural sources of carbon dioxide, as well as their “sinks,” the natural ocean and land processes by which carbon dioxide is pulled out of Earth’s atmosphere and stored, according to NASA.
“This challenging mission is both timely and important,” said Michael Freilich, director of the Earth Science Division of NASA’s Science Mission Directorate in Washington.
“OCO-2 will produce exquisitely precise measurements of atmospheric carbon dioxide concentrations near Earth’s surface, laying the foundation for informed policy decisions on how to adapt to and reduce future climate change.”
It will record around 100,000 precise individual CO2 measurements around the worlds entire sunlit hemisphere every day and help determine its source and fate in an effort to understand how human activities impact climate change and how we can mitigate its effects.
At the dawn of the Industrial Revolution, there were about 280 parts per million (ppm) of carbon dioxide in Earth’s atmosphere. As of today the CO2 level has risen to about 400 parts per million.
“Scientists currently don’t know exactly where and how Earth’s oceans and plants have absorbed more than half the carbon dioxide that human activities have emitted into our atmosphere since the beginning of the industrial era,” said David Crisp, OCO-2 science team leader at NASA’s Jet Propulsion Laboratory in Pasadena, California, in a statement.
“Because of this, we cannot predict precisely how these processes will operate in the future as climate changes. For society to better manage carbon dioxide levels in our atmosphere, we need to be able to measure the natural source and sink processes.”
OCO-2 is the second of NASA’s five new Earth science missions planned to launch in 2014 and is designed to operate for at least two years during its primary mission. It follows the successful blastoff of the joint NASA/JAXA Global Precipitation Measurement (GPM) Core Observatory satellite on Feb 27.
The two stage Delta II 7320-10 launch vehicle is 8 ft in diameter and approximately 128 ft tall and was equipped with a trio of first stage strap on solid rocket motors. This marked the 152nd Delta II launch overall and the 51st for NASA since 1989.
The last time a Delta II rocket flew was nearly three years ago in October 2011 from Vandenberg for the Suomi National Polar-Orbiting Partnership (NPP) weather satellite.
The next Delta II launch later this year from Vandenberg involves NASA’s Soil Moisture Active Passive (SMAP) mission and counts as another of NASA’s five Earth science missions launching in 2014.
Stay tuned here for Ken’s continuing OCO-2, GPM, Curiosity, Opportunity, Orion, SpaceX, Boeing, Orbital Sciences, MAVEN, MOM, Mars and more Earth & Planetary science and human spaceflight news.