Could a volcanic eruption blow ash out of the Earth’s atmosphere? Arleigh Pudlick, Becker, Minnesota No volcano has come close. The Earth’s atmosphere rises about 300 miles, in six layers.

Scientists currently don't have a technique for dating fossils like Lucy directly, but they can assign these fossils relative dates based on the age of layers of volcanic ash found above and below ...

When a large volcano erupts, as Mount Spurr appears close to doing about 80 miles from Anchorage, Alaska, it can ...

Scientists have found previously undocumented ash deposits buried beneath the Lava Creek Tuff in Wyoming — and at least one ...

When the Kīlauea Volcano erupted in May 2018, an enormous amount of ash was released into the atmosphere in a plume nearly five miles high. A new study by an international team of researchers ...

Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow bigger as layers of thick lava and ash harden on top of each other. Mount Etna in Sicily ...

A restive Philippine volcano has erupted briefly on a central island, sending a 2.4-mile plume of ash and debris into the sky and forcing authorities to suspend classes in four villages due to ...

When the Kīlauea Volcano erupted in May 2018, an enormous amount of ash was released into the atmosphere in a plume nearly five miles high. A new study by an international team of researchers ...

Earthquake activity suggests the volcano is close to erupting again in 2025. R.G. McGimsey/Alaska Volcano Observatory/U.S. Geological Survey, CC BY ...

A new study by an international team of researchers revealed that a rare and large summertime phytoplankton bloom in the North Pacific Subtropical Gyre in the summer of 2018 was prompted by ash ...