The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

Light takes time to travel through space. Because of this, the light we see from distant objects in the night sky represents ...

Galaxy clusters are formed by a dense packing of many galaxies, making them the most massive structures in the universe.

An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic ...

Nearly everything in the universe is made of mysterious dark matter and dark energy, yet we can’t see either of them directly ...

A team of international researchers, led by a University of British Columbia astrophysicist, has discovered a young galaxy ...

Scientists at the University of Missouri have identified a small group of unusual objects in the early universe. Using NASA's ...

Astronomers sweeping through the archive of NASA's James Webb Telescope found a group of galaxies with an unknown combination ...

Observations of ultra-massive galaxies, each containing more than 100 billion stars, show that less than 2 billion years ...

Astronomers found a young galaxy cluster with unexpectedly hot gas, suggesting cosmic structures formed faster than once ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

NASA’s Webb Telescope has identified compact, mysterious galaxies nicknamed “astronomy’s platypus.” These strange objects ...