The lava lake is forming at the top of Nyamuragira volcano in the Democratic Republic of the Congo.
Sea monkeys make waves, fall colors are seen from space and a deadly volcanic eruption covers a temple in ash.
See images shot by a hiker trapped on the top of Mount Ontake, the Japanese volcano that erupted on Sept. 27.
A new volcanic island growing 600 miles south of Tokyo is still growing, and scientists worry it could collapse and cause a tsunami, or else explode. Continue reading →
If the big volcano, which last erupted 640,000 years ago, were to blow up again, it would spew enough ash to send particles as far away as New York City. Continue reading →
Cauldrons forming near Iceland's Bardarbunga volcano suggest an eruption under the ice has already taken place.
Both can cause widespread human and ecological devastation. But picking a winner in a destruction derby is a tough call.
Earthquakes under Iceland's Bardarbunga volcano prompted the Met Office to raise the volcano's eruption risk level to orange.
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