How did humans become human? Understanding when, where and in what environmental conditions our early ancestors lived is central to solving the puzzle of human evolution. Subscribe to our newsletter ...

(CNN) — When Mount Ruang in Indonesia underwent multiple explosive eruptions last week, volcanic gases were flung so high they reached the atmosphere’s second layer, tens of thousands of feet above ...

The tulips of the Skagit Flats are connected to a stratovolcano high in the Cascades. Washington’s most remote stratovolcano stands high in the Cascades, 50 miles from the waters of Puget Sound. In ...

A dazzling image taken by NASA’s 2001 Mars Odyssey orbiter shows an unprecedented view of a 12-mile-high volcano poking through clouds at dawn on the Red Planet. Arsia Mons, which dwarfs Earth’s ...

Indonesia’s Mount Ruang has erupted at least three times this week, forcing the evacuation of hundreds of people. On Wednesday evening local time, the volcano’s eruption shot ash nearly 70,000 feet ...

How did humans become human? Understanding when, where and in what environmental conditions our early ancestors lived is central to solving the puzzle of human evolution. Unfortunately, pinning down a ...