The Wow! signal was a strong radio signal detected in 1977 that has never been fully explained.
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The James Webb Space Telescope observes distant galaxies in infrared light.
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The Earth spins at 1000 mph.
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The observable universe is about 93 billion light‑years wide.
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Project Blue Book investigated reports of unidentified flying objects.
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The International Space Station orbits Earth roughly every 90 minutes.
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The Moon completes its phases in about 29.5 days.
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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 center of the Milky Way contains a supermassive black hole.
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