Sid Perkins

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

All Stories by Sid Perkins

  1. Ecosystems

    Changing seasons inspire science

    Researchers are tapping into the wealth of observations being made by citizen scientists nationwide. One of the largest repositories of such data is maintained by the USA National Phenology Network.

  2. Smoke from a Distant Fire

  3. Planetary Science

    Worldwide slowdown in plant carbon uptake

    A decade of droughts has stifled the increasing growth of terrestrial vegetation.

  4. Earth

    Scour power

  5. Haiti quake reveals previously unknown fault

    Scientists say the risk of future temblors in region is unclear.

  6. Earth

    Forest loss slows in Brazilian Amazon

    Between 2004 and 2009, the rate of clearing dropped almost 75 percent.

  7. Space

    Warning for solar flares

    Microwave bursts may serve as warning shots.

  8. Earth

    Rodent poop gauges ancient rains

    The size of chinchilla pellets reveals past desert environment.

  9. Earth

    Trailing dust devils

    Whirlwinds leave dark paths behind by sucking sand grains clean.

  10. Ecosystems

    Frogs leapt before they landed

    Jumping preceded mastery of the touchdown in amphibian evolution, a new study suggests.

  11. Planetary Science

    Hole from on high

    Researchers discover a fresh meteorite impact crater using Google Earth.

  12. Earth

    Mangroves do a coast good

    Left intact, dense swaths of trees can reduce tsunami damage, a new study suggests.