Volatile Earth: Volcano on Fire
Climb with volcano experts to the summit of Nyiragongo, a highly active volcano in the Democratic Republic of the Congo and one of the world's least studied. Twice in recent memory it has erupted, devastating Goma, a neighboring city of 1 million people.
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To investigate when it might erupt next, volcanologists descend into its crater toward its bubbling and seething lava lake to deploy sensors and monitor the volcano's activity.
Not on the schedule right now. See NOVA