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.
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There is a mysterious and loud radio signal known as 'the space roar' that has yet to be explained.
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Mars had an oxygen-rich atmosphere around 4 billion years ago
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The sun puts out more power in 1 second than mankind has ever used within human existence.
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It 'snows' metal on Venus.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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Lightning strikes about 6,000 times per minute on this planet!
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