A rare volcano in Tanzania, Ol Doinyo Lengai, may hold the key to understanding the enigmatic bright pits known as “hollows” scattered across the surface of Mercury, according to a study recently ...

Massive volcanic events in Earth's history that released large amounts of carbon into the atmosphere frequently correlate with periods of severe environmental change and mass extinctions. A new method ...

Mercury is a toxic heavy metal that can exist stably as a gas, with high volatility and global distribution in the atmosphere. Volcanoes represent a primary natural source of Hg in the atmosphere, ...

Mercury's barren surface has led to the planet being labeled as "dead," but signs of geological activity say otherwise. Bright streaks known as "lineae," which can be seen on slopes across the planet, ...

The first batch of scientific papers from the Jan. 14 flyby of NASA’s Mercury Surface, Space Environment, Geochemistry and Ranging (Messenger) reports the discovery of huge volcanoes on the closest ...

The activity of humans has significantly raised the levels of mercury in the atmosphere. These levels have gone up about seven times since 1500 CE, when the modern era began. A new method was ...

WASHINGTON — Earth's first nearly full look at Mercury reveals that the tiny lifeless planet took a far greater role in shaping itself than was thought, with volcanoes spewing "mysterious dark blue ...

Just like Earth, Mercury has lava flows. But these are deep flows that smoothly cover the small planet’s northern polar region, with no Earth-type volcanoes in sight. There are dips in Mercury’s ...