Sound doesn't travel in space.
255
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Some asteroids have other asteroids orbiting them.
131
Astronauts cannot burp in space.
232
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
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16