It looks like an explosion from an 80s game, but you're looking at the first direct proof of the event that started the Universe—the Big Bang. Those black lines represent the polarization of the Cosmic Microwave Background, which "could have been produced by gravitational waves created by inflation" as predicted by Einstein. If confirmed, it could be one of the biggest scientific discoveries in history.
Somebody's going to win a Nobel Prize. At least that's what the physics community is saying after the announcement on Monday that a Harvard team has found the first direct evidence of cosmic inflation right after the Big Bang. It's more proof that the Big Bang really was the beginning of it all.