It 'snows' metal on Venus.
13
A comet's tail always points away from the sun.
2
Summer on Uranus lasts for 21 years.
358
Venus is the only planet that rotates clockwise.
310
The Earth gets 100 tons heavier every day due to falling space dust.
673
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
Earth is the only planet in our solar system that's not named after a god or goddess.
17