Space smells like burnt steak, hot metal, and welding fumes — astronauts report this on their suits after spacewalks.
Fact #3866
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Some stars appear to dim irregularly for reasons that are still studied.
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Neutron stars are so dense that a single teaspoon would weigh billions of tons on Earth.
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The light you see from some stars today began traveling before humans existed.
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The observable universe is about 93 billion light‑years wide.
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The Earth's rotation slightly bulges at the equator.
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Some galaxies are trillions of miles wide.
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The Earth's gravity keeps the Moon in orbit.
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The light you see from some stars today began traveling before humans existed.
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