Satellite imagery has revealed the dramatic extent of an eruption that kicked off just before Christmas, with fountains pouring lava across hundreds of acres.

Following is a transcript of the video. Jeff Karson: Here we go. Abby Tang: This is lava. And this is also lava. One's man-made, and one's, well, coughed up by Mother Earth. But both these ...

When lava meets water, for example, the results can be explosive. Understanding these interactions is vital for keeping communities who reside in hazardous zones — like the volcanic and oceanic ...

Geologists also use the term to describe the solidified deposits of lava flows and fragments hurled into the air by explosive eruptions (for example, lava bombs or blocks). Lava is from the ...