The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

"A cloud of energetic particles this large has never been observed in this galaxy cluster or any other." Using NASA's Chandra X-ray space telescope, astronomers have discovered that a galaxy cluster ...

James Webb telescope's 'starlit mountaintop' could be the observatory's best image yet — Space photo of the week The James Webb telescope proves Einstein right, 8 times over — Space photo of the week ...

NASA's James Webb Space Telescope recently zeroed in on the Bullet Cluster—delivering highly detailed images that show a greater abundance of extremely faint and distant galaxies than ever before.