As if Mars' thin, frigid, dry air wasn't harsh enough, now scientists have found new evidence of acid fog altering the rocks near the Spirit Rover.
It's a virtual certainty that comets have delivered the building blocks of life to Europa's hidden ocean, according to a new study.
South Carolina sees the worst flooding in a millennium. What caused it -- and is this our future in a warming world?
Tree rings suggest that California's dwindling snowpack is truly epic.
Disappearing wetlands, rising seas and terrible hurricanes. Is there any hope for the Big Easy? Researchers say yes, definitely yes.
Even a mild shock wave in the solar wind can suddenly amp up the equatorial electrojet and create localized magnetic storms.
The desert's rising heat could affect everything from rainfall in the Sahel to the quality of soils in Italy.
The first new global seafloor map in decades has some surprises that could help reveal how Earth regulates carbon and climate, as well as revise what we know about ancient oceans.
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