If gravity were somewhat stronger or weaker, stars wouldn't exist, and neither would you.









...
Seth Shostak
(20.07.1943)
  Astronaut



Astronaut

An astronaut (in the U.S.), cosmonaut (in Russia and many ex-Soviet satellite states) or taikonaut (in China) is a person trained for a spaceflight program to command, pilot, or serve as a crew member of a spacecraft.