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NASA Mission Returns First Video From Moon's Far Side



A camera aboard one of NASA's twin Gravity Recovery And Interior Laboratory (GRAIL) lunar spacecraft has returned its first unique view of the far side of the moon. MoonKAM, or Moon Knowledge Acquired by Middle school students, will be used by students nationwide to select lunar images for study.
GRAIL consists of two identical spacecraft, recently named Ebb and Flow, each of which is equipped with a MoonKAM. The images were taken as part of a test of Ebb's MoonKAM on Jan. 19. The GRAIL project plans to test the MoonKAM aboard Flow at a later date.
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Blobrana


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Montana Students Pick Winning Names for Moon Craft

Twin NASA spacecraft that achieved orbit around the moon New Year's Eve and New Year's Day have new names, thanks to elementary students in Bozeman, Mont. Their winning entry, "Ebb and Flow," was selected as part of a nationwide school contest that began in October 2011.
The names were submitted by fourth graders from the Emily Dickinson Elementary School. Nearly 900 classrooms with more than 11,000 students from 45 states, Puerto Rico and the District of Columbia participated in the contest. Previously named Gravity Recovery And Interior Laboratory, or GRAIL-A and -B, the washing machine-sized spacecraft begin science operations in March, after a launch in September 2011.
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Blobrana


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NASA's twin gravity-mapping moon probes received new names Tuesday, reflecting their mission to study the changing pull of Earth's natural satellite. Now to be called "Ebb" and "Flow," the tandem Gravity Recovery And Interior Laboratory (or Grail) spacecraft arrived in lunar orbit over the New Year weekend and were previously referred to simply as "A" and "B". Their new names were offered by fourth-grade students in Bozeman, Mont., who were chosen as the winners of NASA's naming contest.
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Blobrana


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NASA and Students to Announce Names for Moon Probes

NASA will host a news conference at 10 a.m. PST (1 p.m. EST), on Tuesday, Jan. 17, to announce the names selected from a nationwide student contest for twin spacecraft that will study the moon in unprecedented detail. The event will be held at NASA Headquarters in Washington.
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NASA's lunar probes will test theory of why one side of the moon is lopsided
  
Twin NASA probes that arrived at our satellite this weekend may finally reveal a shocking truth: that early on, a smaller twin moon smushed into her. As this intruder splatted into its big sister, it shattered "like a mega-avalanche," said Erik Asphaug, the planetary scientist at the University of California at Santa Cruz who published the twin-moon idea in the journal Nature in August. His co-author was Martin Jutzi of the University of Bern in Switzerland.
This collision would have spread a wide hump of rock onto the back of the moon. There, the material cooled and hardened into a thick crust: the far-side lunar highlands.
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NASA's Twin Grail Spacecraft Reunite in Lunar Orbit

The second of NASA's two Gravity Recovery And Interior Laboratory (GRAIL) spacecraft has successfully completed its planned main engine burn and is now in lunar orbit. Working together, GRAIL-A and GRAIL-B will study the moon as never before.
GRAIL-B achieved lunar orbit at 2:43 p.m. PST (5:43 p.m. EST) today. GRAIL-A successfully completed its burn yesterday at 2 p.m. PST (5 p.m. EST). The insertion manoeuvres placed the spacecraft into a near-polar, elliptical orbit with an orbital period of approximately 11.5 hours. Over the coming weeks, the GRAIL team will execute a series of burns with each spacecraft to reduce their orbital period to just under two hours. At the start of the science phase in March 2012, the two GRAILs will be in a near-polar, near-circular orbit with an altitude of about 55 kilometres.
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Blobrana


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NASA's second moon probe reaches lunar orbit

The second of two new research probes successfully entered the moon's orbit Sunday afternoon, a day after its companion, NASA announced.
The unmanned Gravity Recovery and Interior Laboratory-B (GRAIL-B) fired its main engines at 5:05 p.m. and slipped into lunar orbit 39 minutes later, controllers at the space agency's Jet Propulsion Laboratory reported. Its companion GRAIL-A probe arrived on Saturday.
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GRAIL-A spacecraft
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First of NASA's GRAIL Spacecraft Enters Moon Orbit

The first of two NASA spacecraft to study the moon in unprecedented detail has entered lunar orbit.
NASA's Gravity Recovery And Interior Laboratory (GRAIL)-A spacecraft successfully completed its planned main engine burn at 2 p.m. PST (5 p.m. EST) today. As of 3 p.m. PST (6 p.m. EST), GRAIL-A is in an orbit of 90 kilometres by 8,363 kilometres around the moon that takes approximately 11.5 hours to complete.
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Blobrana


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GRAIL-B will arrive at the Moon on New Year's Day 2012



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Blobrana


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NASA's GRAIL-A Spacecraft 24 Hours Away From Moon

NASA's Gravity Recovery And Interior Laboratory (GRAIL)-A spacecraft is within 24 hours of its insertion burn that will place it into lunar orbit. At the time the spacecraft crossed the milestone at 1:21 p.m. PST today (4:21 p.m. EST), the spacecraft was 49,500 kilometres from the moon.
Launched aboard the same rocket on Sept. 10, 2011, GRAIL-A's mirror twin, GRAIL-B, is also closing the gap between itself and the moon. GRAIL-B is scheduled to perform its lunar orbit insertion burn on New Year's Day (Jan. 1) at 2:05 p.m. PST (5:05 p.m. EST).
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