Astronomers observed for the first time how the red giant turned into a supernova – ČT24 – Czech Television
Supernovae are very conspicuous cosmic phenomena – the explosion of a star can be seen very clearly over long distances due to its immense energy. Most often, astronomers will notice them only after they occur. In this case, however, scientists detected the star in its final phase about 130 days before its explosion, and were … Read more