One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12
The Earth gets 100 tons heavier every day due to falling space dust.
673
Jupiter is bigger than all the other planets combined.
254
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46