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20 billion galaxies: New survey of the sky will reveal the universe in unprecedented detail
- February 26, 2026 at 3:50 PM
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When you look up at the night sky, it appears unchanging. But if you look deep enough you will find that the sky is in fact constantly shifting. Satellites, asteroids and interstellar objects pass by. Stars not only shine brightly, they can suddenly burst with energy or explode in bright supernovae.
Originally published at Phys.org