Maps show how "Tornado Alley" has shifted in the U.S.
"Tornado Alley" used to refer to the central Plains region, but research shows new areas of the Midwest and Southeast now face a greater threat.
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"Tornado Alley" used to refer to the central Plains region, but research shows new areas of the Midwest and Southeast now face a greater threat.
Researchers were tagging marine when the tiger shark they caught vomited a dead echidna — a spiny creature similar to a hedgehog.
"It is a matter of when, not if" the spiders are set to arrive, experts say, and it could happen any day now.
China hails its lunar probe mission as a success after unfurling a Chinese flag on the far side of the moon and collecting rock and soil samples.
The British journalist and author of "Midnight in Chernobyl" returns with his exhaustively-researched new book about the 1986 space shuttle disaster.
The New Caledonian fern, Tmesipteris oblanceolata, has more than 50 times more DNA packed into the nucleus of its cells than humans do.
The spread of an avian flu virus in cattle has again brought public health attention to the potential for a global pandemic. Fighting it would depend, for now, on 1940s technology that makes vaccines from hens' eggs.
The full list of hurricane names for the 2024 Atlantic hurricane season include Beryl, Joyce and Kirk.
Shining galaxies, a purple and orange star nursery and a spiral galaxy are among the new images.
New research indicates the sun's magnetic field originates much closer to the surface than previously thought, a finding that could help predict extreme solar storms.