Twin NASA probes orbiting the moon have generated the highest resolution gravity field map of any celestial body. The new map, created by the Gravity Recovery and Interior Laboratory (GRAIL) mission, ...

Add Yahoo as a preferred source to see more of our stories on Google. On Sept. 10, 2011, NASA's GRAIL spacecraft launched on a mission to the moon! GRAIL, which stands for Gravity Recovery and ...

NASA's twin GRAIL (Gravity Recovery and Interior Laboratory) spacecraft have spent the last year mapping the moon's hidden heart. Today at 4:28 p.m. CST they'll be intentionally crashed into a ...

NASA’s Gravity Recovery and Interior Laboratory (GRAIL) mission has uncovered the origin of massive invisible regions that make the moon’s gravity uneven, a phenomenon that affects the operations of ...

This story has been updated at 10:09 a.m. EDT. Bad weather has forced NASA to delay today's launch of two new lunar probes that are designed to make detailed studies of the inside of the moon and its ...

NASA now has twin spacecraft orbiting the moon, a crucial stage in a mission that aims to accurately map the moon's gravitational field. The two Gravity Recovery And Interior Laboratory (GRAIL) probes ...

We know you’re all fired up about Mars lately, but closer to home, NASA still has a lot of work to do on the moon — Earth’s moon. And some of that work starts today with the GRAIL mission. GRAIL ...

Add Yahoo as a preferred source to see more of our stories on Google. On Dec. 17, 2012, NASA's GRAIL mission crashed into the moon. GRAIL stands for Gravity Recovery And Interior Laboratory, and the ...

NASA’s twin, lunar-orbiting Gravity Recovery and Interior Laboratory (GRAIL) spacecraft began data collection for the start of the mission’s extended operations. At 9:28 a.m. PDT (12:28 p.m. EDT) ...

CAPE CANAVERAL, Fla. — A pair of spacecraft rocketed toward the moon Saturday on the first mission dedicated to measuring lunar gravity and determining what’s inside Earth’s orbiting companion - all ...

WASHINGTON (Reuters) -An exhaustive examination of lunar gravity using data obtained by two NASA robotic spacecraft is offering new clues about why the two sides of the moon - the one perpetually ...