Diving into mysterious Crater Lake
Scientists use aquatic robots and highly sensitive sonar to study its pristine, self-contained ecology.
Photos: A water-filled crater
Video: Deep-diving robot
Fri Aug 25 04:00:00 PDT 2006 | Read full story
Video of the day
Deep-diving robot trolls Crater LakeLatest rover explores the depths of one of the clearest bodies of water in the world.
Promoting alternative energy without being too green
(Like there IS such a thing?)
Astronomers count Pluto out
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