Astronauts on the International Space Station observe about 15 sunrises and sunsets every day
Astronauts become two inches taller in space
The first man-made object to enter space was a German V2 rocket
The Earth's rate of rotation is slowing at a rate of about 17 milliseconds a century. The length of a day for the dinosaurs was closer to 22 hours
On Saturn's moon Titan, gravity is so low and the atmosphere is so thick that humans could fly by flapping arms like wings
Windy planet
Star creation