Galaxies are clouds of stars that range in both size and composition. Some contain hundreds of millions of stars while the largest galaxies can contain trillions of stars. And while it’s not entirely ...

A 50-million-light-year-long flow of hydrogen gas has been observed linking two tiny galaxies 50 million light-years away, ...

Astronomers have been watching this galaxy pair, NGC 4532 and DDO 137, for years and discovered a "gas bridge" over 185,000 light years long.

Dark matter plays a crucial role in galaxy formation by acting as a gravitational “glue” that helps pull gas together to form ...

New radio astronomy results reveal how galaxies exchange gas with the intergalactic medium – the raw material for stars and ...

Using the James Webb Space Telescope (JWST), scientists found that many galaxies started as thick discs before forming the thin discs we see now. This discovery helps answer a long-standing mystery ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: ESA/Webb/NASA/CSA/G. Östlin, P. G. Perez-Gonzalez, J. Melinder, the JADES Collaboration, ...

Astronomers have discovered a massive bridge of neutral hydrogen gas that connects two dwarf galaxies. Scientists at the University of Western Australia node of the International Centre (ICRAR) have ...

That also helped explain a previous puzzle in the sizing of black holes in the early universe. Many of the larger AGNs found in previous studies had seemed to be too big for their galaxies, while the ...