Sid Perkins

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

All Stories by Sid Perkins

  1. Earth

    Dust devils produce magnetic fields

    Scientists who chase dust devils report that the tiny twisters can produce a small magnetic field that changes magnitude between 3 and 30 times per second.

  2. Earth

    Enjoy the beach. . .while it’s still there

    Up to a quarter of the structures within 500 feet of America's coastlines may be lost to erosion in the next 60 years, according to a report issued by the Federal Emergency Management Agency last week.

  3. Earth

    Kilauea: 20 years on, it’s still erupting

    As of Jan. 3, Kilauea—Hawaii’s Energizer Bunny of volcanic activity—has been erupting continuously for two decades.

  4. Earth

    Electronic Jetsam

    Oceanographers are developing and deploying a variety of seafaring probes—including drifters, gliders, and scientific torpedoes—that will enable them to explore and monitor the ocean remotely.

  5. Astronomy

    In the Beginning: Dark matter builds galaxies, feeds quasars

    Cosmologists say they have found compelling evidence that massive galaxies were already in place when the universe was less than a billion years old.

  6. Paleontology

    Wings Aplenty: Dinosaur species had feathered hind limbs

    A team of Chinese paleontologists has discovered fossils of a small, feathered dinosaur that they say had four wings.

  7. Earth

    Snow alga may be sizable carbon sink

    A common microorganism that adds a reddish tinge to some patches of snow may be a significant consumer of planet-warming carbon dioxide.

  8. Earth

    Northern Vents: Arctic shows surprising hydrothermal activity

    A recent survey along a midocean ridge beneath the Arctic icepack unveiled an unexpected abundance of hydrothermal activity.

  9. Humans

    Unfounded Fear: Scared to fly after 9/11? Don’t reach for the car keys

    A new analysis of transportation in the United States shows that flying remains a much safer way to travel than driving, even when airline fatalities resulting from the Sept. 11 terrorist attacks are included.

  10. Earth

    Sulfur Studies: Early Earth’s air was oxygen-poor

    Analyses of ancient sulfide minerals and the modern organisms that create sulfides are giving scientists a better idea of what Earth's atmosphere and oceans may have been like billions of years ago.

  11. Earth

    Mapping with GRACE

    Global gravity maps compiled from data painstakingly gathered during the last 30 years have now been rendered obsolete by a pair of satellites that were launched just last March.

  12. Earth

    Toppling icebergs sped breakup of Larsen B ice shelf

    Scientists now think they know what accelerated the rapid disintegration of most of Antarctica's Larsen B ice shelf early this year after a strong summer storm pummeled the region.