40
Sep 15 '19 at 19:13
31
Sep 14 '20 at 16:10
30
Feb 8 at 9:07
23
May 22 '20 at 1:17
22
Feb 7 at 10:46
21
The moon has just the right speed not to crash on the Earth or escape into space. What are the odds?
Jan 30 at 11:14
19
Aug 15 '19 at 15:15