Geologists visited the Kilauea volcano crater in Hawaii to collect lava samples. Officials from the United States Geological ...

Take a road trip through Nevada to this moon-like crater used by NASA astronauts as a training ground to prepare them for the ...

ATHENS, Greece -- Multiple earthquakes are rattling Santorini, a volcanic island in Greece, prompting authorities to dispatch rescuers with tents, a sniffer dog and drones, and to shut schools on four ...

Now, millions of visitors each year come to see its dramatic scenery of whitewashed houses and blue-domed churches clinging to the cliff along the flooded caldera, or volcanic crater. Last week ...

Now, millions of visitors each year come to see its dramatic scenery of whitewashed houses and blue-domed churches clinging to the cliff along the flooded caldera, or volcanic crater. Last week ...

According to the U.S. Geological Survey, the lava flow has covered 15-20% of the volcano crater floor. An additional flow emerged from the south side of the cone shortly after 7:30 p.m. The ...