Astronomers' theory of how galaxies formed may be upended
The standard model for how galaxies formed in the early universe predicted that the James Webb Space Telescope (JWST) would see dim signals from small, primitive galaxies. But data are not confirming the popular hypothesis that invisible dark matter helped the earliest stars and galaxies clump together.
If another gravity theory is correct, "then the broader implications are enormous," astrophysicist Stacy McGaugh told ...
By closely analyzing the warping of light from distant galaxies, the researchers found a subtle but perplexing discrepancy ...
A father-daughter duo has decoded an alien-like signal beamed from a spacecraft in 2023. Now, citizen scientists are trying ...
Gravitational distortions produced by distant galaxies show a slight—but notable—disagreement with Einstein's predictions.
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Why is the expansion of our universe accelerating? Twenty-five years after its discovery, this phenomenon remains one of the greatest scientific mysteries. Solving it involves testing the fundamental ...
Our most powerful telescopes have revealed that the cosmos is surprisingly simple on the largest visible scales. Likewise, ...
Why is the expansion of our Universe accelerating? Twenty-five years after its discovery, this phenomenon remains one of the greatest scientific mysteries. Solving it involves testing the fundamental ...
The Big Bang theory suggests that the universe began as a hot, dense point, expanding into the cosmos we observe today.
These are big, literally cosmic questions, and astronomers continue to struggle to nail down the answers. Different ...
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