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  1. Planetary Science

    See how it lands

    A camera on a Mars-orbiting spacecraft caught an image of NASA's Phoenix Mars Lander suspended from its parachute just before it descended onto the Red Planet’s northern plains on May 25.

    By Ron Cowen
  2. Planetary Science

    Touchdown! Phoenix lands on Mars

    The first close-up color images of the northern arctic circle on the Red Planet were recorded by the Mars Phoenix Lander spacecraft only a few hours after its flawless descent at 7:38 p.m. EDT, May 25. The detailed images suggest ice lies beneath the hard soil.

    By Ron Cowen

  3. U.S. science policy needs to heed global realities

    Comment by Steven Hyman, provost of Harvard University

    By Steven Hyman

  4. Science Future

    Upcoming events in science.