News

  1. Planetary Science

    So long, Rosetta: End is near for comet orbiter

    During its time in orbit around comet 67P, the Rosetta spacecraft discovered diverse terrains, organic molecules and a source of water quite different from Earth’s oceans.

    By Christopher Crockett
  2. Earth

    Glass bits, charcoal hint at 56-million-year-old space rock impact

    Glassy debris and the burnt remains of wildfires suggest that a large space rock hit Earth near the start of the Paleocene-Eocene Thermal Maximum warming event around 56 million years ago.

    By Thomas Sumner
  3. Health & Medicine

    Concern expands over Zika birth defects

    Infection with Zika virus in utero can trigger a spectrum of birth defects beyond microcephaly, and could potentially cause long-term health problems as well.