The oldest meteorite impact crater on Earth (3.5 billion years old) has been discovered in Western Australia's Pilbara region ...

In a remote corner of the U.S., active volcanoes wait patiently above the ridgelines, leaving residents on edge.

One of the most active volcanoes in Central America - the “Volcan de Fuego,” or "Volcano of Fire" - erupted on Monday.

Sitting by the river and washing hands with saliva instead of using the water flowing from the river to do so rsquo; .