Science vs

UFOs: Through the Wormhole Again

In 2017, a weird-looking space object called ʻOumuamua whipped past our sun. Now a Harvard scientist is suggesting it miiiight be an alien probe! So we’re revisiting this episode from a few years ago, where we ask: could aliens actually exist? Is there any chance they’ve visited Earth already? We talked to astronomers Dr. Jill Tarter, Dr. Seth Shostak…