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volcano

Awesome View of the Active Pavlov Volcano, as Seen from the Space Station

May 23, 2013

Want to stay on top of all the space news? Follow @universetoday on Twitter The Pavlof Volcano began erupting on May 13, 2013, shooting lava into the air and spewing an ash cloud 20,000 feet (6,000 meters) high. This image from the International Space Station was taken on May 18, and provides a unique oblique [...]

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Researchers Send Mars Some Radar Love

August 31, 2012

A radar map of Mars’ major volcanic regions created by the Arecibo Observatory in Puerto Rico (John Harmon et al., NAIC) Even though we currently have several missions exploring Mars both from orbit and on the ground, there’s no reason that robots should be having all the fun; recently a team of radio astronomers aimed [...]

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Could There Be Life In Them Thar Pits?

April 5, 2012

Recent images from ESA’s Mars Express spacecraft reveal long rows of crater-like depressions lining the flanks of ancient Martian volcanoes located in the planet’s vast Tharsis region. Rather than being the result of impact events, these “pit chains” were likely caused by underground lava flows — and could be a prime location for look for [...]

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Spectacular Eruptions of Mt. Etna in Sicily from Space and Earth

January 15, 2011

Spectacular eruptions from Mt Etna are spewing massive quantities of lava, smoke and ash many hundreds of meters high into the skies above the island of Sicily. Mt Etna is the most active volcano in Europe and one of the most active on all of Earth. The volcano rumbled to life again this week on [...]

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Why Do Volcanoes Erupt?

October 31, 2010

Why do volcanoes erupt? It seems like a pretty simple question when you first pose it, so let’s look into the answer, shall we. The simplest answer would seem to be that magma, being less dense than the rock surrounding it, tries to float to the surface. If the magma contains water and dissolved gasses, [...]

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