A comet's tail always points away from the sun.
2
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
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
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
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194