Latest Volcanic rock Stories
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.
Using data from the Thermal Emission Spectrometer on Mars Global Surveyor and the Thermal Emission Imaging System on Mars Odyssey, ASU planetary geologists have found evolved igneous rocks -- including andecite, daceite and granite -- in localized areas on Mars, indicating that the planet has remained geologically active through much of its history.
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.
- Withering but not falling off, as a blossom that persists on a twig after flowering.