Is that a shipwreck or a UFO? A mysterious object discovered deep beneath the Baltic Sea has treasure hunters and alien enthusiasts scratching their heads. But now there are plans to get to the bottom of the underwater conundrum.

  "I have been doing this for nearly 20 years so I have a seen a few objects on the bottom, but nothing like this," commercial diver Peter Lindberg told CNN. He's the leader of a team from the deep-sea salvage company, Ocean Explorer, that first made the discovery back in August. "We had been out for nine days and we were quite tired and we were on our way home, but we made a final run with a sonar fish and suddenly this thing turned up," Lindberg said.

   Through the use of side-scan sonar, the team discovered a disc-like object that measures nearly 200 feet in diameter and has generated out-of-this-world speculation. At the time the object’s identity seemed destined to remain a mystery because the expense to launch an expedition was too high. However, interest in the find has reportedly led to a flood of donations.

Peter Lindberg
 While no firm date has been set, Lindberg suggested his team may return to the site around May. Meanwhile, theories about the bizarre image run the gamut from the far-fetched - some say it's the Millenium Falcon from "Star Wars" - to the more Earth-bound, as some guess the image reveals a collection of sunken Russian ships. "We've heard lots of different kinds of explanations," Lindberg told CNN.

  "But we won't know until we have been down there." "Right now, we know about 20,000 objects, mostly shipwrecks, in the Baltic Sea. But I think there may be more than 100,000," said sonar expert Ardreas Olsson, according to Yahoo! News. "I'm not sure what you will see when you go down. But I'm excited. It's going to be interesting to see what it .

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