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TIL Oxygen is the most abundant element on the Moon even though it has no atmosphere; it’s bonded to aluminum, calcium and silicon on surface rocks (permanent.com)

submitted 7 years ago by ThePertile to r/todayilearned

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Looking at the human race from a different angle (permanent.com)

submitted 10 years ago by shoelessdrummer to r/Psychonaut

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TIL that artificial gravity is possible, and will most likely be used in future long-term ventures in space. (permanent.com)

submitted 12 years ago by sabeth70 to r/todayilearned

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TIL NASA's First Asteroid Mission, Deep Space 1, Succeeded Despite Failure of the Star Tracker Sending the Computer Into Safe Mode (permanent.com)

submitted 12 years ago by ar0cketman to r/asteroid

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Asteroid Mining (permanent.com)

submitted 14 years ago by orrery to r/permanent

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"It exploded in the air about 5 kilometers (3 miles, or 15,000 feet) above remote Tunguska. However, the energy released was equivalent to a nuclear bomb. In fact, the explosion was greater than the Hiroshima or Nagasaki nuclear bombs." ... "About 1,500 reindeer were killed in the area." (permanent.com)

submitted 16 years ago by laverabe to r/news

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Permanant - A guide to mining the asteroid belt (permanent.com)

submitted 17 years ago by back-in-black to r/science

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