Dr. Bruce Betts / Random Space Facts @ 9 Mar 2010, 6:15 pm
Triton is the only large Moon in the solar system to orbit retrograde, the opposite direction of Neptune's rotation. | View original | Reply | Retweet →
We are indeed excited about the success of the DCT primary mirror (@jeterbugg ). It exceeds specifications for aperture & surface precision! | View original | Reply | Retweet →