News

  1. Physics

    Probing chemical signatures in an earthy way

    Scientists have performed nuclear magnetic resonance analysis using Earth's magnetic field.

    By Peter Weiss
  2. Planetary Science

    Opportunity rolls out of Purgatory

    After being stuck for nearly 5 weeks, the Mars rover Opportunity has freed itself from a sand trap on the Red Planet.

    By Ron Cowen
  3. Materials Science

    Whisking Whiskers: Nanobrushes sweep up

    Researchers have made microscopic brushes with carbon nanotube bristles.

    By Peter Weiss
  4. Earth

    Wetland Blanket: Volcanic sulfates may curb methane emission

    Field studies hint that the deposition on wetlands of sulfate compounds from the atmosphere could temporarily stifle those regions' natural emissions of methane.