(Image Source: NASA)

BY SHANLEY REYNOLDS
ANCHOR CHRISTINA HARTMAN


NASA’s Twin Gravity Recovery and Interior Laboratory, or GRAIL spacecraft crashed into the moon’s surface in a planned end to their mission.

The crash, which NBC’s CosmicLog dubbed a “grand send off,” was planned. (Video Source: NASA)

The twin spacecraft hit the surface around 5:30 Monday evening with Ebb crashing first and Flow flowing 32 seconds later.

The site where the two spacecraft hit the moon was named after former astronaut, Sally Ride.

Naming the site after her is fitting, because, as CNET reports...

“Each spacecraft also carried cameras used by middle school students to photograph the lunar surface in a project sponsored by Sally Ride Science, a science education company founded by the late shuttle astronaut.”

Ebb and Flow have spent the last year orbiting the moon at more than 3,600 mph to map the moon’s gravity in detail. They measured it by traveling around the moon together and beaming a wave back and forth between one another. NASA elaborates on how precise those measurements were.

“How about one-tenth of one micron? Another way to put it is that the GRAIL twins can detect a change in their position down to one half of a human hair.”

NASA decided to crash Ebb and Flow because the spacecraft were running out of fuel and they didn’t want them to accidentally land on any history landing sites like those of the Apollo missions.

Ebb and Flow End Mission with Planned Crash into Moon

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Dec 17, 2012

Ebb and Flow End Mission with Planned Crash into Moon

(Image Source: NASA)

BY SHANLEY REYNOLDS
ANCHOR CHRISTINA HARTMAN


NASA’s Twin Gravity Recovery and Interior Laboratory, or GRAIL spacecraft crashed into the moon’s surface in a planned end to their mission.

The crash, which NBC’s CosmicLog dubbed a “grand send off,” was planned. (Video Source: NASA)

The twin spacecraft hit the surface around 5:30 Monday evening with Ebb crashing first and Flow flowing 32 seconds later.

The site where the two spacecraft hit the moon was named after former astronaut, Sally Ride.

Naming the site after her is fitting, because, as CNET reports...

“Each spacecraft also carried cameras used by middle school students to photograph the lunar surface in a project sponsored by Sally Ride Science, a science education company founded by the late shuttle astronaut.”

Ebb and Flow have spent the last year orbiting the moon at more than 3,600 mph to map the moon’s gravity in detail. They measured it by traveling around the moon together and beaming a wave back and forth between one another. NASA elaborates on how precise those measurements were.

“How about one-tenth of one micron? Another way to put it is that the GRAIL twins can detect a change in their position down to one half of a human hair.”

NASA decided to crash Ebb and Flow because the spacecraft were running out of fuel and they didn’t want them to accidentally land on any history landing sites like those of the Apollo missions.

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