If we sent an unmanned spacecraft into a wormhole, what do you think we'd find?

They say a wormhole is the portal to another universe. Maybe that's where all the UFOs are coming from. The other universe might be teeming with life! The UFOs are coming from somewhere, why not the wormhole? The scientists say there's a wormhole right in our own Snickers...ugh! I mean, Milky Way galaxy. Just like there's a Black Hole there too!