The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The earth rotates more slowly on its axis in March than in September.
145
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
It 'snows' metal on Venus.
13
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Mars had an oxygen-rich atmosphere around 4 billion years ago
13