Filtered sunlight gives off a blue aura inside a fumarole
May 7, 2010
Filtered sunlight gives off a blue aura inside a fumarole (an ice tube formed around a volcanic steam vent) atop Mt. Erebus in Antarctica, the Earth's southernmost active volcano. The United States maintains three research stations on Antarctica. The National Science Foundation operates them all.
Topics: Environment, Stratovolcanoes, Ross Island, Extreme points of Earth, Erebus, Mount Erebus, Fumarole, Volcano, Antarctica