News

  1. Planetary Science

    A phoenix on Mars

    If all goes according to plan, a spacecraft will land on the north polar region of Mars in 2008 and scoop up samples of the icy terrain.

    By Ron Cowen
  2. Anthropology

    Continental Survivors: Baja skulls shake up American ancestry

    Members of a foraging group that lived on Mexico's Baja peninsula around 600 years ago were direct descendants of America's first settlers, who arrived on the continent at least 12,000 years ago.

    By Bruce Bower
  3. Health & Medicine

    Zealous Adherence: Erratic HIV therapy hasn’t fueled resistance

    Among people infected with HIV, those who don't consistently take their antiretroviral drugs as prescribed are no more likely to develop drug-resistant HIV than are patients who adhere to their treatment schedule.