The small bots will help researchers at NASA's Jet Propulsion Laboratory map fissures and learn more about how eruptions occur.
The lava lake is forming at the top of Nyamuragira volcano in the Democratic Republic of the Congo.
Lava from a slow-moving flow ignited a house on Hawaii's Big Island, the first home to catch fire in a town threatened by the eruption.
A 2,000-degree lava front inches closer to homes in the Hawaiian town of Pahoa, on Hawaii's Big Island.
Lava from a slow-erupting volcano has reached within yards (several meters) of homes on Hawaii's Big Island.
Fragments of corals, shells and coarse sand in a natural sinkhole suggest that a mighty tsunami hit the Hawaiian Islands about 500 years ago.
Slow-moving lava from Hawaii's Kilauea volcano is about a week away from homes and farms in the Kaohe Homesteads neighborhood.
Hurricanes Iselle and Bertha threaten the United States this week.
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