Only 0.1% of this galaxy is made of matter; the other 99% is unknown to humanity. Researchers: Dark matter accounts for ...

Quasars are the most luminous type of active galaxy. They emit light across the electromagnetic spectrum, produce powerful ...

Computer algorithms can model the universe, matching simulations to observations and revealing the distribution of dark ...

Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

A fast radio burst, or a strong pulse of energy, was tracked to a distant long-dead galaxy that astronomers never thought ...

Hubble Space Telescope mapped Andromeda, revealing a chaotic history shaped by mergers. A 2.5-billion-pixel mosaic shows 200 ...

A new way to study 3D maps of galaxies in the cosmos without compressing the data ... Back in the old days, astronomers would conduct galaxy surveys by taking deep space images on photographic ...

NASA’s SPHEREx space observatory will provide astronomers with a big-picture view of the cosmos like none before.

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

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