Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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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.
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The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
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If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
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Pluto is smaller than Russia.
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There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
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