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Watch What on Earth? Season 1 Episode 4 Online

  • 6.5/10
  • COUNTRIES: United States of America
  • Subtitles: English,Français,Deutsch

NASA astronaut Mike Barratt, describes photographing a strange ring in the ice on the world's oldest and most mysterious lake from the International Space Station. More rings on Lake Baikal have been seen since, they baffle scientists.