A new analysis of lava from the deep mantle indicates that water-soaked dust particles, rather than a barrage of icy comets, asteroids, or other bodies, delivered water to the newly forming Earth.
Scientists use a trio of techniques to resolve the age and duration of rhyolite volcanism of the Salton Buttes.
An ultraslow-spreading stretch of the Southwest Indian Ridge is thicker than expected: both tectonic and volcanic processes may be feeding the growing seafloor there.
For decades, scientists have probed Earth's remote mantle by analyzing how seismic waves of distant earthquakes pass through it. But we are still challenged by the technique's limitations.
Analysis of a volcano may help explain why some eruptions produce volcanic balloons–hollow chunks of lava that encase a gas-filled cavity.
A serendipitous discovery of tiny tunnels in lava that cooled rapidly under fresh water could help scientists search for life on Mars.
What role does the asthenosphere play in midplate volcanism?
How do scientists communicate with the public during natural disasters, such as lava flows?
How are scientists taking advantage of Iceland’s Bardarbunga eruption, which shows no signs of slowing down?
Earlier this year, a red glow became visible atop Nyamulagira, a volcano in the East African Rift. Helicopter flights soon confirmed lava fountains inside a pit crater on the volcano's central caldera.