Sid Perkins

Sid Perkins is a freelance science writer based in Crossville, Tenn.

All Stories by Sid Perkins

  1. Earth

    Global warming heats up nursery of hurricanes

    Sea-surface temperatures in the North Atlantic Ocean reached record highs last year.

  2. Earth

    Radiation Redux: Forest fires remobilize fallout from bomb tests

    A sensor installed to monitor fallout from modern nuclear tests has detected small amounts of radioactive cesium produced by bomb tests decades ago and sent skyward by forest fires.

  3. Earth

    Underwater landslides tallied near Puerto Rico

    An oceanographic survey off the northern coast of Puerto Rico has found remnants of many underwater landslides, a handful of which were large enough to have caused deadly tsunamis.

  4. Planetary Science

    Lots of red dust, but not much noise

    In space, no one can hear you scream, but a new analysis suggests that it's pretty quiet on Mars, too.

  5. Earth

    Asian sediments betray age of nearby desert

    Grains of silt embedded in thick sediments of northwestern China may settle a debate about the age of the Taklimakan Desert.

  6. Paleontology

    Sticky Subjects: Insights into ancient spider diet, kinship

    Remnants of a spider web embedded in ancient amber suggest that some spiders' diets haven't changed much in millions of years.

  7. Paleontology

    Ancient webbed masters

    Newly unearthed fossils of a 110-million-year-old bolster the notion that all modern birds evolved from aquatic ancestors.

  8. Earth

    Cleaning up pollution, whey down deep

    Lab and field tests hint that dairy whey, a lactose-rich by-product of the dairy industry, could be used to clean up underground water supplies tainted by the solvent trichloroethylene.

  9. Earth

    Subglacial lakes may not be isolated ecosystems

    Large volumes of water may occasionally flow between the lakes that lie deep beneath Antarctica's kilometers-thick ice sheet.

  10. Paleontology

    Amphibious Ancestors

    Newly discovered fossils from Greenland, as well as a reexamination of those of previously known creatures, are providing researchers with additional insights into ancient vertebrates' move from water to land.

  11. Earth

    Toxic Tides: Another reason to worry about hurricanes

    The hurricanes that struck Florida in the summer of 2004 also may have triggered an intense, widespread, and long-lasting red tide that afflicted the state's west-central coast throughout 2005.

  12. Earth

    Deep-sea action

    Scientists using remotely operated vehicles have reported the first close-up observations of a deep undersea volcano during its eruption.