Einstein wins again: Exotic gravity theories take a blow from new observation. DESI has allowed astronomers to create an unprecedented 3D map of the Universe representing 20% of the entire sky.

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Einstein wins again: Exotic gravity theories take a blow from new observation.

DESI has allowed astronomers to create an unprecedented 3D map of the Universe representing 20% of the entire sky.
A telescope beneath a colorful, abstract visualization of the universe, with a starry night sky in the background.

Key Takeaways
  • Astronomers still struggle to understand phenomena that contradict our current understanding of gravity and the distribution of matter in the Universe.
  • The most popular explanation for these observations is dark matter — but since it has not been directly observed, some scientists favor alternative explanations, including the possibility that our widely accepted laws of physics are wrong or incomplete.
  • Recent observations from the Dark Energy Spectroscopic Instrument provided a perfect testbed to make progress in solving the puzzle.

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