News

  1. Earth

    Unintended consequences

    A full recovery of the ozone hole over Antarctica in the coming years could significantly boost warming of the atmosphere over and around the icy continent.

    By Sid Perkins
  2. Health & Medicine

    No babies, no hormones

    A radically different form of contraception would prevent pregnancies with small molecules of RNA.

    By Patrick Barry
  3. Space

    Before the beginning

    A new analysis suggests that the universe exists within a bigger space.

    By Ron Cowen
  4. Planetary Science

    Shake, shake, shake

    Instrument succeeds in capturing first soil sample, allowing Mars Phoenix Lander team to begin scientific studies.

    By Ashley Yeager
  5. Astronomy

    From planet to plutoid

    Pluto and its dwarf planet neighbors are christened plutoids, the International Astronomical Union rules.