A mysterious black hole in a distant galaxy just woke up after decades of silence—and it’s putting on a cosmic light show!

Ansky, a once-dormant black hole, is now emitting powerful X-ray bursts, giving scientists a rare chance to study its ...

The Chandra X-ray Telescope is investigating the habitability of exoplanets. NASA explains. Credit: NASA/CXC/A. Hobart ...

Jonathan McDowell is retiring from studying the universe. But he’s ramping up efforts to chronicle humanity’s exploration of ...

Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

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The European Space Agency's XMM-Newton is playing a crucial role in investigating the longest and most energetic bursts of ...

The edge of a nearby stellar nursery called NGC 3324, found at the northwest corner of the Carina Nebula, forms the 'mountains' and 'valleys' spanning this image captured by the James Webb Space ...

The Chandra X-ray Observatory was launched on July 23, 1999 aboard Space Shuttle Columbia. See 25 'never-before-seen' images ...

In a study published in The Astrophysics Journal, a Michigan State University researcher used the NASA Chandra X-Ray ...

Check out an amazing view of star cluster NGC 602. It "lies on the outskirts of the Small Magellanic Cloud," according to the ...

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...