StarDate

Impostor!

A binary star system about 30 million light-years away is an impostor. When astronomers first saw it, they thought it was a supernova — the titanic explosion of a massive star. They even called it one: Supernova 2000ch. But the system is still there. The system is in the spiral galaxy NGC 3432, in a clump of young, bright, heavy stars. By the end of last y… Play episode