Apparently, this user prefers to keep an air of mystery about them.
19 Layout of the universe Apr 2 '14
19 Will Saturn's rings become a moon? Jan 23 '14
13 Are we made of the stuff of one star or more stars? Jan 12 '14
10 How many earths fit in the observable universe? May 13 '14
10 How can the Sun burn without oxygen? Apr 29 '14
10 What is the difference between our time and space time? Jan 15 '14
9 How long should it take for us to observationally determine if Caltech's Planet Nine is really there? Jan 20