Chandra

Astronomers have traced a bright, curling radio source nicknamed the "Treble Clef" to a massive galaxy cluster hidden behind the plane of the Milky Way, and identified the source itself as a radio…

On September 1, 2026, the LUX-ZEPLIN (LZ) Collaboration reported an unusual event that its underground detector had recorded on June 16, 2023. The detector is designed to search for WIMPs:…

Astronomers have mapped the gas in nine nearby galaxies whose central black holes are actively pulling in matter, and found the same arrangement in every one: rings of new stars well out from the…

Between the softest X-rays Chandra can detect and the extreme-ultraviolet light that gas between the stars absorbs lies a slice of the spectrum that has been difficult to survey. Chandra's…

Astronomers combing NASA's public Chandra X-ray Observatory archive have picked out 84 objects in six galaxies that glow in the faintest X-rays and then vanish from images taken at higher energies.…

The Chandra X-ray Observatory pointed at one patch of sky more than a hundred separate times, chasing other targets entirely. Stacked together, they come to 6.6 million seconds of observing, a total…