Dossier
Chandra
Coverage of Chandra in the Nexus archive.
- NASA's Chandra telescope reveals Milky Way's outer reaches may stretch farther than previously known
NASA's Chandra telescope and ESA's XMM-Newton observed gamma-ray bursts to measure dust clouds in the Milky Way's spiral arms, revealing they may extend farther than previously known. The study used geometric analysis of X-ray rings from bursts to determine distances, finding the most distant arm is about 3,500 light-years wide. This method improves precision over assumptions about galactic rotation.
- The universe's 'most relaxed' galaxy cluster was shaped by cosmic violence, new study finds
The galaxy cluster Abell 2029 was shaped by a violent collision that occurred 4 billion years ago, according to new Chandra observations. This collision has left scars on the cluster. The study reveals the history of the universe's 'most relaxed' galaxy cluster.