The Phoenix Cluster's central galaxy is about 5.8 billion light-years away and should be mostly done with star formation. Many galaxy clusters have a region of hot gas in the intracluster medium (ICM) ...

NASA's flagship space telescope captured flares from the disk of superheated material around the black hole, revealing the dynamic—and explosive—physics at our galaxy's core.

While the events observed around Sgr A* are dramatic, this black hole is not as active as some at the center of other ...

A new image from the Hubble Space Telescope shows a cosmic cloudscape, with clouds of dust and gas swirling in beautiful ...

By looking ever further back in time, the James Webb Space Telescope is at last revealing the first galaxies – and a very ...

A newly discovered star system in the heart of the Milky Way is moving at unprecedented speeds. Scientists believe this ...

NASA scientists have detected a star and trailing exoplanet that may be sailing through the Milky Way with unprecedented ...

The Euclid space mission of the European Space Agency has spotted an Einstein ring in the galaxy NGC 6505, just 590 million ...

How do you cool down a phoenix? I don't mean the mythological birds of flame and rebirth, but rather a cosmic namesake with a fittingly fiery nature.

This breakthrough builds on more than a decade of research using NASA’s Chandra X-ray Observatory and Hubble Space Telescope, ...

Scientists have seen a powerful explosion from a mysterious, unknown object in space. Researchers do not know where the ...

A study by researchers at Michigan State University has unearthed a new source of trihydrogen, often referred to as “the ...