Thawing permafrost has released so much methane into Esieh Lake near Fairbanks, Alaska that the air above it is flammable.

The ground is made up of both ice and frozen soil called permafrost. The ground is made up of both ice and frozen soil called permafrost. As the permafrost thaws, the ground sinks and floods. The ice ...

Hovering blue flames that flicker over bogs and marshes have inspired ghostly folktales for centuries. Known as “will-o’-the-wisp,” “jack-o’-lantern,” “corpse candle” and “ignis fatuus” (“foolish fire ...

NASA's Cassini probe zipped by Saturn's largest moon Titan on Tuesday (July 24) in a close flyby to search for a lake filled with liquid methane. The Cassini spacecraft flew within 629 miles (1,012 ...

On Dec. 5, Miki’s dog team was bounding across the lake ice on the trail to our village Post Office, giving no thought to the safety of the foot-thick ice. After all, one foot can support a small ...