Late in April 2009, astronauts aboard the International Space Station observed a strange circular area
of thinned ice in the southern end of Lake Baikal in southern Siberia. The ice ring had a diameter of 2.7 miles (4.4 km).
Credit: NASA
Late in April 2009, astronauts aboard the International Space Station observed a strange circular area
of thinned ice in the southern end of Lake Baikal in southern Siberia. The ice ring had a diameter of 2.7 miles (4.4 km).
Credit: NASA
A large coffee mug.