Russia's Kamchatka volcanoes spew giant ash clouds

(AP) -- Two volcanoes erupted Thursday on Russia's far-eastern Kamchatka Peninsula, tossing massive ash clouds miles (kilometers) into the air, forcing flights to divert and blanketing one town with thick, heavy ash.

Image: Dark reflections in the Southern Cross

NASA's Wide-field Infrared Survey Explorer, or WISE, captured this colorful image of the reflection nebula IRAS 12116-6001. This cloud of interstellar dust cannot be seen directly in visible light, but WISE's detectors observed ...

New technique shows 50-year history of toxic algae in Lake Wingra

(PhysOrg.com) -- As public health officials worry about rising concentrations of cyanobacteria - often called blue-green algae - in lakes, scientists are concerned that a warming climate will stimulate the growth of cyanobacteria.

NASA trapped Mars Rover finds evidence of subsurface water

(PhysOrg.com) -- The ground where NASA's Mars Exploration Rover Spirit became stuck last year holds evidence that water, perhaps as snow melt, trickled into the subsurface fairly recently and on a continuing basis.

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