Supernova observed just after explosion

Supernovae are explosions that happen at the end of a massive star’s life. Even though these stars are already 10,000 times brighter than the Sun during their lifetime and even brighter in death, witnessing the early stages of these explosions is very rare. If by chance one is found a few days later, the supernova ejecta has already destroyed any information about it's immediate environment. But Ofer Yaron and colleagues had the chance to witness a supernova much earlier, providing new insights into just what happens when a supernova is in its infancy. The observations are presented in a new Nature Physics study.

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