One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
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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 is bigger than all the other planets combined.
254
Lightning strikes about 6,000 times per minute on this planet!
158
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Some asteroids have other asteroids orbiting them.
131
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9