Some newly found stars in a small galaxy called Sextans A are forming without some of the usual "ingredients," raising ...

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

Using the Subaru Telescope’s wide-field camera, astronomers have discovered a previously unknown structure surrounding a tiny ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old ...

Astronomers have identified the largest known single spinning structure within the cosmic web, a filament approximately 117,000 light-years across and 5.5 million light-years long, situated 424 ...

Astronomers have captured the most detailed look yet at faraway galaxies at the peak of their youth, an active time when the adolescent galaxies were fervently producing new stars.

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

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

Hubble has revealed a strange cosmic object called Cloud-9, a dark matter–dominated cloud with no stars at all. Scientists ...

A wobbling jet from a giant, voracious black hole is suppressing star formation in a distant galaxy—and astronomers have ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

On the night of Oct. 5 to 6, 1923, Edwin Hubble discovered a new star — and revealed the utter vastness of the universe. Hubble was looking at the cosmos with the 100-inch Hooker telescope at the ...