anyone's guess
バルト海の深海でなぞの物体をスエーデンのtreasure hunterが見つけたと話題になっていますが，その正体がわかるのは春以降の２次調査になるとのこと。何でしょうか？anyone's guess？GP先輩，これはどんな意味のフレーズ？（ゼミ生 b.m.）
(CNN) -- Deep down on the bottom of the Baltic Sea, Swedish treasure hunters think they have made the find of a lifetime. The problem is, they're not exactly sure what it is they've uncovered.
Out searching for shipwrecks at a secret location between Sweden and Finland, the deep-sea salvage company Ocean Explorer captured an incredible image more than 80 meters below the water's surface.
At first glance, team leader and commercial diver Peter Lindberg joked that his crew had just discovered an unidentified flying object, or UFO.
"I have been doing this for nearly 20 years so I have a seen a few objects on the bottom, but nothing like this," said Lindberg.
"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," he continued.
I have been doing this for nearly 20 years so I have a seen a few objects on the bottom, but nothing like this
Peter Lindberg, team leader Ocean Explorer.
Using side-scan sonar, the team found a 60-meter diameter cylinder-shaped object, with a rigid tail 400 meters long.
The imaging technique involves pulling a sonar "towfish" -- that essentially looks sideways underwater - behind a boat, where it creates sound echoes to map the sea floor below.
On another pass over the object, the sonar showed a second disc-like shape 200 meters away.
Lindberg's team believe they are too big to have fallen off a ship or be part of a wreck, but it's anyone's guess what could be down there.
"We've heard lots of different kinds of explanations, from George Lucas's spaceship -- the Millennium Falcon -- to 'it's some kind of plug to the inner world,' like it should be hell down there or something.
http://edition.cnn.com/2012/01/28/world/europe/swedish-shipwreck-hunters/index.html?iref=allsearch
