Using data from NASA's James Webb Space Telescope, astronomers from the Center for Astrophysics | Harvard & Smithsonian (CfA) ...

After combing through NASA's James Webb Space Telescope's archive of sweeping extragalactic cosmic fields, a small team of ...

Astronomers used the XRISM mission to separate signals and analyze the extreme gravitational forces at work in active ...

A spinning black hole just revealed its inner chaos, XRISM’s image goes deeper than any X-ray telescope before it.

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

Astronomers have finally watched a black hole do something Albert Einstein only described on paper: twist the very fabric of ...

Astronomers discovered an extremely hot galaxy cluster in the region that was far hotter and older than current theories ...

A team of astronomers has uncovered an unusually hot 12 billion year-old gas cluster that challenges everything we thought we ...

JWST has identified nine distant, compact galaxies that do not fit existing categories, raising new questions about how galaxies formed in the early Universe.

The Virgo cluster, despite being millions of light-years away, closest large galaxy cluster to Earth. The Virgo galaxy ...

Four of the nine galaxies in the newly identified "platypus" sample were discovered in NASA's James Webb Space Telescope's ...