Engineers at NASA's Jet Propulsion Laboratory in Pasadena,
Calif., have received confirmation that the twin GRAIL
spacecraft have, as planned, completed their impact into the
moon. NASA GRAIL Twins Complete Their Moon Impact Update: The
twin spacecraft of NASA's GRAIL mission have completed their
final rocket burns. Their pre-planned lunar impact is expected
at about 2:28 p.m. PST (5:28 EST). Ebb and Flow -- the two twin
spacecraft of NASA's Gravity Recovery and Interior Laboratory
(GRAIL) mission -- have begun their final rocket burns. They are
scheduled to impact the moon at around 2:28 p.m. PST (5:28 EST).
NASA is providing live commentary of the pre-planned lunar
surface impacts by GRAIL beginning at 2 p.m. PST (5 p.m. EST)
Monday, Dec. 17. The event will be broadcast on NASA Television
and streamed on the agency's website. For NASA TV streaming
video, schedule and downlink information, visit:
http://www.nasa.gov/ntv . The coverage will also be streamed
live on Ustream at: http://www.ustream.tv/nasajpl2 T