Apparently, this user prefers to keep an air of mystery about them.
53 What would happen if an ice cube is left in space? may 4 '14
8 Do Pluto and Charon have unusual Langrange points? dec 10 '14
5 Is it possible for a star to orbit a planet? dec 30 '14
5 Orbits in a binary star system jul 26
4 How are the masses of celestial bodies determined? may 19 '14