12.30.11 - At 2:01 p.m. PST (5:01 p.m. EST), NASA's GRAIL-A spacecraft completed its main-engine burn, which maneuvered it into orbit around the moon.
12.28.11 - NASA will hold a media telecon at 11 a.m. PST on Dec. 28, to preview twin spacecraft being placed in orbit around the moon for the New Year.
10.06.11 - NASA's Gravity Recovery And Interior Laboratory (GRAIL)-B spacecraft successfully executed its first flight path correction maneuver Wednesday, Oct. 5.
10.03.11 - NASA has a class assignment for U.S. students: help the agency give the twin spacecraft headed to orbit around the moon new names.
09.10.11 - NASA's twin lunar Gravity Recovery and Interior Laboratory (GRAIL) spacecraft lifted off from Cape Canaveral Air Force Station in Florida at 9:08 a.m. EDT (6:08 a.m. PDT) Saturday, Sept. 10, to study the moon in unprecedented detail.
09.10.11 - NASA's GRAIL mission to study the moon from crust to core successfully lifted off from Cape Canaveral Air Force Station's Pad SLC-17B at 9:08 a.m. EDT (6:08 a.m. PDT).
09.10.11 - NASA's GRAIL mission blasts off from Cape Canaveral Air Force Station, Fla.
09.08.11 - The launch of a Delta II vehicle carrying NASA’s Gravity Recovery and Interior Laboratory (GRAIL) was scrubbed today, Thursday, Sept. 8, due to weather.
09.08.11 - Upper-level winds delayed launch of NASA's GRAIL mission to Friday, Sept. 9. Launch opportunities are at 5:33 a.m. PDT (8:33 a.m. EDT) and 6:12 a.m. PDT (9:12 a.m. EDT).
09.02.11 - Two lunar orbiters will work together to reveal clues about our moon's thermal history, and how the inner solar system's rocky planets developed.
09.01.11 - NASA has invited 150 followers of the agency's Twitter accounts to a two-day launch Tweetup Sept. 7-8.
08.25.11 - NASA's Gravity Recovery And Interior Laboratory (GRAIL) mission to study the moon is in final launch preparations for a scheduled Sept. 8 launch from Cape Canaveral Air Force Station in Florida.
08.24.11 - NASA's GRAIL spacecraft is set to launch to the moon aboard a United Launch Alliance Delta II rocket on Sept. 8, 2011, from Cape Canaveral Air Force Station, Fla.
08.22.11 - NASA will host a news conference at 11 a.m. EDT (8 a.m. PDT), on Thursday Aug. 25, to discuss the upcoming launch of the Gravity Recovery And Interior Laboratory (GRAIL) mission.
08.18.11 - NASA's lunar-bound GRAIL twins were mated to their Delta II launch vehicle at the Cape Canaveral Air Force Station's Launch Complex 17.
08.11.11 - NASA's twin lunar probes completed their final inspections and were weighed one final time at the Astrotech Space Operations facility.
07.22.11 - NASA will host a two-day launch Tweetup for 150 of its Twitter followers on Sept. 7-8 at the agency's Kennedy Space Center in Florida.
05.23.11 - NASA's twin lunar probes have arrived in Florida to begin final preparations for a launch in late summer.
05.19.11 - NASA twin GRAIL spacecraft have completed pre-shipment assembly and testing.
07.28.10 - Engineers have conducted a fuel tank check of one of NASA's GRAIL mission spacecraft, scheduled for launch in 2011.