The Earth gets heavier each day by tons, as meteoric dust settles on it.
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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
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Saturn's rings are about 500,000 miles in circumference but only about a foot thick.
160
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221