They know they're onto something big. If only they knew what that something was.
A group of treasure hunters based in Stockholm, using sonar, has found a strange disc-shaped object on the floor of the Baltic Sea between Sweden and Finland. From above, it looks a bit like the Millennium Falcon of "Star Wars" fame. It's large -- 197 feet in diameter -- and it's in about 275 feet of water. Leading to (or from) it is a churned-up track on the sea floor of about 1,600 feet.
"We need to know...Full Story