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

A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

The supermassive black hole at the center of the Milky Way apparently flared up dramatically relatively recently. An echo of ...

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

It sounds like something from the plot of Interstellar, but this plan to beam precious data back to Earth—before it’s lost ...

Astronomers at Queen’s University Belfast and the Leiden Observatory in the Netherlands are seeking help to shape how ...

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

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

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

Artist’s impression of a forming galaxy cluster in the early universe: radio jets from active galaxies are embedded in a hot ...

Ripples in space and time constantly churn through the universe, forming what's called the "gravitational wave background." A new study examines why these waves are so much bigger than scientists once ...