Eposode 76: A new star was born?

Dude, where’s my science?

It may seem like this clue has something to do with new star formation, but new star formation is not a process that would make a new star appear in the sky over the course of a day. Can you guess what kind of astronomical phenomenon could cause a new star to be visible in the sky on such a short timeframe? You might try looking at the history of astronomy here on Earth for clues about what could lead to the arrival of a new “guest star” in the sky.