Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
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When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
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
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
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