NASA's Curiosity rover has discovered an abundance of pure sulfur on Mars after it recently drove over a rock and cracked it ...

Striking Photos of the Men Who Work in an Active Volcano. Mount Ijen’s gorgeous vistas have captivated travelers for centuries, but in recent years, its sulfur mine has become a controversial ...

Kanlaon Volcano on Negros Island recorded seven earthquakes and emitted over 2,100 tons of sulfur dioxide in the past 24 ...