Mar 12, 2011
"The first wave of a tsunami is usually the most destructive, scientists say."
Mar 6, 2011
"Until now it was thought that once a volcano's magma chamber had cooled down it remained dormant for centuries before it could be remobilized by fresh magma. A theoretical model was tested on two major eruptions and completely overturned this hypothesis: the reawakening of a chamber could take place in just a few months."
Feb 25, 2011
"Last month, NASA scientists got a rare chance to study 'thundersnow' first-hand when a freak winter storm rolled right over their research center."
Feb 22, 2011
"Researchers studying the origin of Earth's first breathable atmosphere have zeroed in on the major role played by some very unassuming creatures: plankton."
Feb 10, 2011
"Mysterious "night shining" or noctilucent clouds are beautiful to behold, and are usually seen during the summertime, appearing at sunset. They are thin, wavy ice clouds that form at very high altitudes and reflect sunlight long after the Sun has dropped below the horizon. Scientists don't know exactly why they form, but continue to observe them -- both from Earth and from space. These images were taken by the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite."