Future missions to Venus could also supply additional data on the density and temperature of the planet's crust, which could ...

Mercury’s topography provides clues that volcanoes once spewed lava on the planet. Mariner 10 first glimpsed and then Messenger later confirmed that glossy plains spread across Mercury’s surface.

“The fact that more than half the planet had never been ... settled a 30-year debate over whether Mercury—with a molten iron core, like Earth—has volcanoes: It does, plenty of them.

"Nature surprises us every time so we want to make sure the volcano isn't active." So Ceres might not be a planet. And it might not be king of the asteroids. But it’s home to a giant volcano ...

Venus may be far more geologically alive than anyone expected. New research suggests its outer crust could be churning with ...

Mercury has the shortest and fastest orbit around the Sun and experiences dramatic temperature changes as it rotates. It is a world of extremes. Explore facts about our solar system's fastest planet.

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than ...

Henry C. Petersen | Granite Bay, California There is certainly a lot of energy when a volcano erupts—and I do mean a lot. As an example, the thermal energy released during the 1980 eruption of ...