Think you'd like to see aliens make contact with Earth? Stephen Hawking might get you to think again.
Aliens, the way he sees it, might be traveling the cosmos right now - not for exploration's sake but because they've run out of resources at home.
And if they're flying around looking for resources, guess what their intentions would be if they see Earth?
The British physicist advances his thoughts on aliens in his new Discovery Channel series, "Into the Universe With Stephen Hawking," which began airing Sunday.
In a video clip on Discovery Channel's website, Hawking imagines that aliens might have the technology to harness energy from whatever star they're near. The process, he proposes, could open a wormhole that could let them travel large distances - perhaps to here.
The clip shows spacecraft leaving a wormhole and approaching Earth as ominous music plays.
"Like us, they would probably have evolved from a species used to exploiting whatever it can," a narrator says.
Hawking's warning contrasts with the excitement some are showing about the search for extraterrestrial intelligence. Just last week, the Search for Extraterrestrial Intelligence (SETI) said it was releasing its data to astronomers and researchers all over the world, hoping more people would join the search.
Hawking's series on the Discovery Channel continues this coming Sunday at 9 p.m. ET.