The light hitting the earth right now is 30 thousand years old.
163
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
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
The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
The Earth gets 100 tons heavier every day due to falling space dust.
673