On 18/03/2011 06:37, Sam Wormley wrote:
NASA Science News for March 18, 2011

NASA’s MESSENGER spacecraft successfully achieved orbit around Mercury
at approximately 9 p.m. EDT on March 17th. This marks the first time a
spacecraft has orbited the solar system's innermost planet.

FULL STORY at

http://science.nasa.gov/science-news..._orbitmercury/

Great news. Fingers crossed that all the heat protection systems
operate properly. Looking forward to some interesting data from this
probe. I suspect there's a fair chance of finding sites associated with
impacted comets, for instance.
--
Rob