Sound doesn't travel in space.
255
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Pluto is smaller than Russia.
9
Jupiter is bigger than all the other planets combined.
254
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8