Uncategorized

  1. Earth

    Ancient Taint: Likely source of old dioxins identified

    Lab experiments show that the burning of peat from coastal areas of Scotland could be responsible for the enigmatic concentrations of dioxins sometimes found in pre-20th-century soils.

    By Sid Perkins
  2. Humans

    Jonathan Eberhart (1942–2003)

    After chronicling space science and exploration for 3 decades on behalf of Science News, Jonathan Eberhart died last week from complications of multiple sclerosis.

    By Science News
  3. Ecosystems

    After Invasions: Can an ant takeover change the rules?

    A rare before-and-after study of a takeover by an invasive ant species shows the interloper quickly disassembling the basic rules of the invaded community.

    By Susan Milius
  4. Health & Medicine

    Mixed Results: AIDS vaccine falters in whites, may help blacks

    In its first large test, an AIDS vaccine has failed to shield an at-risk population from acquiring AIDS.