James Webb spotted a young galaxy blasting away its star-forming gas, revealing how massive galaxies may die early.

If a galaxy runs out of gas, it will stop forming stars and die. Present-day galaxies have had more than 10 billion years to ...

Astronomers have discovered a powerful “galaxy-killing wind” in the early universe that may help solve one of the biggest ...

According to a new study, some of the earliest galaxies observed with the James Webb Space Telescope are in fact much less massive than they first appeared. Black holes in some of these galaxies make ...

Image of the Kinman Dwarf galaxy taken with the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 in 2011, before the disappearance of the massive star. (NASA, ESA / Hubble, J. Andrews, University ...

Scientists confirm the universe is still expanding faster, refuting a recent challenge that questioned the existence of dark energy.

An international team of astronomers has identified three ultra-massive galaxies—each nearly as massive as the Milky Way—already in place within the first billion years after the Big Bang. The ...

NASA's James Webb Space Telescope captured two nearby dwarf galaxies interacting with each other in this image released on Dec. 2, 2025. Dwarf galaxies can give us insights into galaxies in the early ...

The first images from the Vera C. Rubin Observatory showed off a breathtaking preview of its capabilities — capturing millions of stars and galaxies light-years from Earth, along with thousands of ...