Summary:
- Astronomers have discovered two previously unknown supernova remnants in our Milky Way galaxy using data from NASA's Chandra X-ray Observatory and other telescopes.
- The two supernova remnants, named G54.1+0.3 and G57.2+0.8, were hidden from view in visible light but were detected through their X-ray emissions.
- The discovery of these two remnants provides new insights into the life cycle of massive stars and the evolution of the interstellar medium in our galaxy.