Watch black holes and the stars that feed them dance in this mesmerizing NASA video

Doomed To Collide: Astronomers Announce Discovery of Supermassive Binary Black Holes

Neil Armstrong was given the option to replace Buzz Aldrin with Jim Lovell because NASA was aware that "Aldrin's personality grated on several of the other astronauts". Armstrong kept Aldrin and felt Lovell deserved to command his own moon mission, the ill-fated Apollo 13

Has the Milky Way’s Black Hole Come to Light?