The newly spotted lava flows appear to have oozed out from the western slopes of Sif Mons, a huge shield volcano, and Niobe Planitia, a relatively flat region home to many volcanoes.

Unity of the White Mountains at 257 Woodland Rd. in Lakeside is hosting filmmaker Barbara L. Davis and her newest nature film ...

Beneath the Pacific Ocean, about 300 miles off the coast of Oregon, a massive underwater volcano is preparing to erupt. Scientists monitoring Axial Seamount have detected a surge in seismic ...

Deep below the Earth's surface, magma is churning and flowing into the Axial Seamount, an underwater shield volcano about 300 miles off the coast of Oregon.

On the western slopes of Sif Mons, a large shield volcano, and Niobe Planitia, a flat region studded with volcanic vents, Magellan’s radar images showed long sinuous features appearing between ...

The peak of Mauna Kea, a shield volcano on the Big Island of Hawaii, is one of the world's most remote places. The mountain's flat shape, gentle winds, and low humidity make it perfect for ...

Today, it’s a massive volcano on Mars—but it may have once been an island. An escarpment around Olympus Mons appears similar to those around volcanic islands on Earth.

Mars is a planet of vast contrasts — huge volcanoes, deep canyons, and craters that may or may not host running water. It will be an amazing location for future tourists to explore, once we put the ...

The newly spotted lava flows appear to have oozed out from the western slopes of Sif Mons, a huge shield volcano, and Niobe Planitia, a relatively flat region home to many volcanoes.