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Latest Volcanic rock Stories

Image 1 - Microbes In Lava Tube Live In Conditions Like Those On Mars
2011-12-16 08:48:18

A team of scientists from Oregon has collected microbes from ice within a lava tube in the Cascade Mountains and found that they thrive in cold, Mars-like conditions. The microbes tolerate temperatures near freezing and low levels of oxygen, and they can grow in the absence of organic food. Under these conditions their metabolism is driven by the oxidation of iron from olivine, a common volcanic mineral found in the rocks of the lava tube. These factors make the microbes capable of living...

2005-07-06 17:05:35

Mars is a rocky planet with an ancient volcanic past, but new findings show the planet is more complex and active than previously believed "“ at least in certain places. Finding those places, however, turns out to be trickier than just looking at landforms like river valleys or lakebeds or searching for specific minerals. "Context is everything," said Philip Christensen, Principal Investigator for the Thermal Emission Spectrometer (TES) on Mars Global Surveyor and for the Thermal...

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2005-06-02 07:15:29

In their explorations of Mars, both the Spirit and Opportunity rovers found evidence that liquid water was once on the planet's surface. Joy Crisp, project scientist for NASA's Mars Exploration Rovers, discussed the rovers' long journey and their surprising discoveries at a public lecture on May 19, 2005. In this contribution, Crisp explores why the Spirit rover might be called a problem child. This edited transcript of the lecture is Part 2 of a 4-part series. Astrobiology Magazine --...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'