Askja is an active volcano nestled in the remote central highlands of Iceland, known for its complex of nested calderas within the Dyngjufjöll mountains. The volcano has a history of small basaltic eruptions, with the most recent one occurring in 1961. Askja gained international attention when NASA used it as a training ground for astronauts preparing for the Apollo missions. In recent years, increased seismic activity and magma intrusion have sparked interest among scientists, leading to heightened monitoring of the volcano.