Kilauea caldera aglow at dusk
This photo was taken at the Hawaii Volcanoes National Park. Kilauea is the most active of the five volcanoes that form the island of Hawaiʻi, and at its summit is this caldera, a cauldron-like structure that forms when land collapses inward after a volcanic erruption. The history of erruptions of Kilauea long but one of its longest lived erruptions in recorded history (and one of the longest lived eruptions in the world) began back on January 3, 1983 and is still going on today, over 31 years later! And it shows no signs of stopping.