A newly discovered object may be a key to unlocking the true nature of a mysterious class of sources that…

These images, released on April 14, 2026, show two open star clusters, Trumpler 3 (left) and NGC 2353 (right). They…

Scientists have found that young stellar cousins of our Sun are calming down and dimming more quickly in their X-ray…

For the first time, astronomers have directly measured the speed of superheated gas billowing from a cauldron of stellar activity…

NASA’s IXPE (Imaging X-ray Polarimetry Explorer) mission has taken a new observation of a supernova, RCW 86, helping fill in…

A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in…

In late February, people in the Northern Hemisphere can look up for a special sight: six planets will all be…

For the first time, a much younger version of the Sun has been caught red-handed blowing bubbles in the galaxy,…

A new discovery captures the cosmic moment when a galaxy cluster – among the largest structures in the universe –…

Like a recording artist who has had a long career, NASA’s Chandra X-ray Observatory has a “back catalog” of cosmic recordings that…

A new video shows the evolution of Kepler’s Supernova Remnant using data from NASA’s Chandra X-ray Observatory captured over more…

Celebrate the New Year with the “Champagne Cluster,” a galaxy cluster seen in this new image from NASA’s Chandra X-ray…

Written by Michael Allen An international team of astronomers using NASA’s IXPE (Imaging X-ray Polarimetry Explorer) has identified the origin…

Most smaller galaxies may not have supermassive black holes in their centers, according to a recent  study using NASA’s Chandra…

Galaxy clusters are the most massive objects in the universe held together by gravity, containing up to several thousand individual…

Editor’s note, Dec. 11, 2025: This story was updated to include an additional partner’s research and related release. Astronomers have…

For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a…

This image released on June 30, 2025, combines data from NASA’s James Webb Space Telescope and NASA’s Chandra X-ray Observatory…

Data from NASA’s Chandra X-ray Observatory and NASA’s James Webb Space Telescope combine to reveal an otherworldly view of the…

A black hole is growing at one of the fastest rates ever recorded, according to a team of astronomers. This…

Westerlund 1, the biggest and closest “super” star cluster to Earth, dazzles in this image released on July 23, 2025.…