The standard cosmological model (present-day version of "Big Bang," called Lambda-CDM) gives an age of the universe close to ...

The existence of massive, elliptical galaxies in the early universe has puzzled astronomers for two decades. An international ...

WASHINGTON, Jan 30 (Reuters) - Observations by NASA's James Webb Space Telescope and Chandra X-ray Observatory are providing ...

You might think galaxies can’t ever find each other in our runaway cosmos, but it turns out gravity can sometimes overcome ...

Astronomers have released the most ambitious cosmic map assembled so far, confirming that matter in the Universe is less ...

The young galaxy cluster existed about 12.8 billion years ago and has an estimated mass 20 trillion times that of the sun ...

For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

When you gaze up at the night sky, it’s easy to feel as though you're looking into an endless, empty canvas sprinkled with ...

New research suggests that the heart of the Milky Way may be dominated by a dense clump of dark matter rather than the ...

A flat plane of dark matter beyond the Local Group may explain why nearby galaxies move away from us instead of falling ...

The NASA/ESA/CSA James Webb Space Telescope has topped itself once again, delivering on its promise to push the boundaries of the observable universe closer to cosmic dawn with the confirmation of a ...

Mysterious blasts of radio waves from across the universe called fast radio bursts help astronomers catalog matter. ESO/M. Kornmesser, CC BY-SA Chris Impey, University of Arizona If you look across ...