Dead Stars Ignite A Brilliant Cosmic Fireworks Show For NASA (opens in new tab)

Astronomers, with the aid of NASA’s Chandra X-ray Observatory, have revealed two striking supernova stories: one hints at a fresh remnant near the Milky Way’s center, while the other shows long-studied wreckage in a nearby galaxy changing in ways no one expected. Together, the findings show that supernova remains are more dynamic, and more