All the seasons are so different, so the best time to visit California depends on what you want to see and do. Check out our ...

There is only one area where you can legally swim in Crater Lake where the surface temperatures never get above 57 degrees in ...

Researchers flew a helicopter over Hawaii's Kilauea volcano, capturing dramatic footage of its latest eruptive episode. Close ...

Lava fountains reached heights of more than 330 feet and feeding multiple lava streams. Scientists with the U.S. Geological Survey's Hawaiian Volcano Observatory said the fountains were likely to go ...

One of the world’s most active volcanoes, Kilauea on Hawaii’s Big Island, began spewing lava from the north vent Wednesday, the latest event in an ongoing eruption that began almost six months ago.

One of the world’s most active volcanoes, Kilauea on Hawaii’s Big Island, began spewing lava from the north vent Wednesday, ...

Kīlauea Volcano’s Halemaʻumaʻu crater began erupting again on Wednesday, with lava fountains reaching more than 1,000 feet in ...

Among its many mysteries are the planet’s so-called pancake domes—enormous, circular volcanic formations that resemble oversized flapjacks left to cook on Venus’ searing surface. While scientists have ...

Planetary scientists have been wondering for many years how the oddly shaped volcanic domes came to exist on the surface of Venus. With their flat shapes and steep sides, they are unlike any volca ...