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

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

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

Most of the universe is slipping away from the Milky Way, carried outward as space itself expands. Yet one giant neighbor is bucking the trend, racing straight at us while almost every other major ...

The James Webb Space Telescope (JWST) was designed to look back in time and study galaxies that existed shortly after the Big ...

Some galaxies in the early universe were absolute powerhouses, churning out stars at rates that would dwarf the Milky Way's modest stellar production. These "monster galaxies," buried deep in dust ...

The James Webb Space Telescope has identified an extraordinary system of five galaxies merging when the universe was only about 800 million years old, according to a study published in Nature ...

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

The sharpest dark matter map ever reveals the invisible cosmic scaffolding that built galaxies, stars, and ultimately life itself.

Scientists are now certain that James Webb will break every such record until the earliest observable light is eventually ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...

Neutrino particles have extremely small masses, yet there are so many of them that they carve out the large-scale structure ...