Summary:
- This image from the Chandra X-ray Observatory shows a supernova remnant called Cassiopeia A, which is the result of a massive star that exploded around 340 years ago.
- The different colors in the image represent different elements that were ejected from the star during the supernova explosion, such as silicon, sulfur, and iron.
- By studying the composition and structure of Cassiopeia A, scientists can learn more about the life cycle of stars and the processes that occur during a supernova explosion.