An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
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
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
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