Latest Issue of Science News

cover 3/7

Sid Perkins' Articles

  • News

    A quick recovery after dinosaur deaths

    Evidence from 65-million-year-old sediments suggests that a single impact from space wiped out the dinosaurs and that ecosystems recovered from the trauma in only a few thousand years.
  • News

    New analysis rejuvenates Himalayas

    The Asian mountain range that includes some of the tallest peaks in the world turns out to be about 15 million years younger than geologists previously thought.
  • News

    Satellites verify greenhouse-gas effects

    Comparisons of data obtained from instruments that orbited Earth more than 25 years apart provide direct evidence that the planet's greenhouse effect increased significantly between 1970 and 1997.
  • News

    Is there a vent in the global greenhouse?

    Satellite observations of ocean temperatures in tropical regions of the western Pacific suggest that when ocean temperatures there warm up, the amount of heat-trapping cirrus clouds decreases, possibly providing a heat-venting effect that could help reduce global warming.
  • Feature

    A Nation Aflame

    In the wake of one of the worst fire seasons in the past 50 years, scientists are assessing risk as more people move into fire-prone areas and developing ways to better predict the behavior of--and the potential for--wildfires.
  • News

    Extinctions Tied to Impact from Space

    Evidence trapped in 250-million-year-old sediments may help researchers pin the ultimate blame for the massive extinctions that occurred then on the impact of an extraterrestrial object about 9 kilometers across.
  • News

    Scientists develop self-healing composites

    Researchers have developed a composite material that has the ability to repair small cracks within itself, a characteristic that could be used to extend the reliability and service life of electronic and aerospace components.
  • News

    Siberian snow has long-range effects

    The strength of the winter weather feature called the Siberian high is linked to the amount of early-season snow cover in its namesake region.