A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
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The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
The heart of an astronaut actually gets smaller when in outer space.
216
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