News

  1. Earth

    Shuttle yields detailed, 3-D atlas

    NASA scientists and Defense Department mapmakers are assembling billions of radar measurements made from the space shuttle Endeavour to produce what they say will be the world’s best topographic map.

    By Sid Perkins
  2. Paleontology

    Dinosaur tracks show walking and running

    A single trail of dinosaur footprints found in a British limestone quarry preserves a record of two different walking styles in the same animal, a tantalizing clue that some types of lumbering, bipedal dinosaurs could also run if the need arose.

    By Sid Perkins
  3. Planetary Science

    Galileo at Jupiter: The goodbye tour

    After more than 6 years spent touring Jupiter and its four largest moons, the Galileo spacecraft’s mission is beginning to wind down.