Lava that erupts from hotspots around the world seems to come from a similar ancestral magma, new research finds.

The towering seamount off the coast of American Samoa was explored by underwater robot for the first time since 2005.

Beyond our solar system, countless alien worlds of lava, ice, water and noxious gas swirl through the cosmos. Here are some of the strangest exoplanets that scientists have discovered so far.

“Check out the winding lava formations like the volcano pillar ... The Vailulu’u seamount is in the National Marine Sanctuary of American Samoa, a 13,581-square-mile region of protected ...