Uncategorized

  1. Climate

    Why some rainbows are all red

    Red rainbows are caused by the position of the sun in the sky, appearing more often during sunrise and sunset, new research finds.

    By Thomas Sumner
  2. Life

    Upending daily rhythm triggers fat cell growth

    Constant production of stress hormone spurs fat growth.

    By Tina Hesman Saey
  3. Genetics

    Roosters run afoul of genetic rules

    Moms aren’t always the only ones that pass mitochondrial DNA to offspring, a study of chickens finds.

    By Tina Hesman Saey
  4. Climate

    Fireworks brighten the sky but dampen the view

    Fireworks and other pyrotechnics severely reduce visibility during celebrations such as New Year’s Eve and Guy Fawkes Day, researchers report.