MESSENGER discovers an unusual impact basin on Mercury
Thursday, April 30, 2009 - 14:42
in Astronomy & Space
A previously unknown, large impact basin has been discovered by the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft during its second flyby of Mercury in October 2008. The impact basin, now named Rembrandt, more than 700 kilometers (430 miles) in diameter.