There are particles from distant supernova explosions passing through your body right now.
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The light you see from some stars today began traveling before humans existed.
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The Earth orbits the Sun at about 30 kilometers per second.
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The Vostok 1 mission marked the first human spaceflight.
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In 1954, a woman in Alabama reported being struck by a meteorite fragment inside her home.
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The Rosetta mission successfully landed a probe on a comet in 2014.
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In 1961, Yuri Gagarin became the first human in space.
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Some galaxies appear distorted due to gravitational effects.
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Some stars appear to dim irregularly for reasons that are still studied.
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