HONOLULU (AP) — Lava is shooting 100 feet to 200 feet (30 to 60 meters) into the air as Hawaii’s Mauna Loa, the world’s largest active volcano, erupts for the first time in nearly 40 years. For now, ...

Volcanoes are often judged by the size of their eruptions, but volcanologists measure danger ...

It's a truism among oceanographers that there is more accurate mapping of the surface of the moon and Mars than of the deep-ocean floor. That's especially true for the Bismarck Sea, a relatively deep ...

Explosive volcanic eruptions on early Mars may have transported water ice to equatorial regions, according to a modeling study published in Nature Communications. The authors suggest that these ...