Editor’s note: The KOIN 6 Weather team is presenting weather and science lessons to help serve our teachers and students. Click here for more lessons. PORTLAND, Ore. (KOIN) – The mighty mountains of ...

Volcanoes repeatedly remind people of Earth's potential for violence. Since 1700, volcanic eruptions have killed more than 250,000 people and devastated scores of communities. What causes these ...

(CNN) — Here's some background information about volcanoes, mountains that open downward to a reservoir of molten rock. Facts: More than 80% of the Earth's surface, both above and below sea level, is ...

recounts Nyiragongo's 2002 eruption, which left more than 100 people dead and another 100,000 homeless. describes two main types of volcanic eruptions: explosive, as seen at Mt. Saint Helens where ...

It comes as no shock that a potentially new type of volcanic lightning had long eluded scientists: The bolts can be as short as about 3 feet (1 meter) long and last just a few milliseconds. But ...