All Stories by Sid Perkins
- Earth
How to rate a snowstorm
Scientists have developed a rating scale to assess the impact of major snowstorms that strike the northeastern United States.
- Paleontology
Ancestor of Kings: Early progenitor of T. rex had a crest
Paleontologists have unearthed remains of the oldest known dinosaur of the tyrannosaur clan.
- Earth
Cold and Deep: Antarctica’s Lake Vostok has two big neighbors
Trapped beneath Antarctica's kilometers-thick ice sheet are two immense bodies of water that may harbor ecosystems that have been isolated for millions of years.
- Earth
2005 was warmest year on record
Last year's global average temperature was the warmest since scientists began compiling records in the late 1800s.
- Earth
Warming climate will slow ocean circulation
Later this century, rising concentrations of greenhouse gases in Earth's atmosphere could slow the ocean currents that bring warm waters to the North Atlantic.
- Earth
Charting the Past: Surveys map two lost harbors of Phoenicia
By analyzing long tubes of sediment drilled from locations in and around the Mediterranean ports of Tyre and Sidon, scientists have rediscovered the harbors from which legions of ancient Phoenician mariners set sail.
- Paleontology
First Steps
Using materials as diverse as lobster eggs, dead birds, and the headless carcass of a rhinoceros, scientists are conducting experiments that scrutinize the first steps of the fossilization process.
- Earth
Greenhouse Plants? Vegetation may produce methane
Lab tests suggest that a wide variety of plants may routinely do something that scientists previously thought impossible; produce methane in significant quantities in an oxygenated environment.
- Earth
Mass movement
Two satellites designed to note small changes in Earth's gravitational field detected effects of the magnitude 9.3 earthquake that occurred west of Sumatra on Dec. 26, 2004.
- Earth
Estimating a temblor’s strength on the fly
New analyses of ground motions caused by large earthquakes suggest that it may be possible to estimate the full magnitude of such quakes immediately after they start rumbling.
- Earth
Beyond the ABC’s: North Atlantic posts record hurricane season
The 2005 hurricane season in the North Atlantic shattered a number of records, including several that were decades old.
- Paleontology
Mammoth Findings: Asian elephant is closest living kin
DNA studies suggest that the woolly mammoth is more closely related to the Asian elephant than to the African elephant.
