Planetary Science

  1. Planetary Science

    Galileo’s Demise: A planetary plunge, by Jove

    Out of fuel and according to plan, the Galileo spacecraft ended an 8-year tour of Jupiter and its moons on Sept. 21, when it dove into the planet’s dense atmosphere.

  2. Planetary Science

    After the Tragedy

    NASA's plan to return the space shuttles safely to flight after the Columbia accident is coming under intense scrutiny.

  3. Planetary Science

    Earthly Field Trip to Mars

  4. Planetary Science

    More Mars—Better than Ever

  5. Planetary Science

    A phoenix on Mars

    If all goes according to plan, a spacecraft will land on the north polar region of Mars in 2008 and scoop up samples of the icy terrain.

  6. Planetary Science

    Cozying up to Mars

    The Hubble Space Telescope photographed Mars on Aug. 27 when the planet came closer to Earth than it had in nearly 60,000 years, enabling the telescope to take the sharpest global image of Mars ever taken from Earth's vicinity.

  7. Planetary Science

    A warmer, fluffier Pluto

    Although Pluto has been receding from the sun for more than a decade, planetary scientists have now found that between 1988 and 2002, Pluto’s atmosphere has nearly doubled in size and its temperature has increased by about 1 degree C.

  8. Planetary Science

    Mars Encounter

  9. Planetary Science

    Slowdown on Saturn? Windy doings on the ringed planet

    The winds in Saturn’s upper atmosphere are some of the swiftest in the solar system, but recent findings suggest there’s been a dramatic slowdown.

  10. Planetary Science

    New view of Earth

    On May 8, 2003, scientists pointed a camera on board the Mars Global Surveyor probe back at Earth and captured the first image from another planet that shows our world as more than a point of light.

  11. Planetary Science

    Springtime on Neptune: Images hint at seasonal changes on distant planet

    Belying its location in the deep freeze of the outer solar system, Neptune may undergo a change of seasons.

  12. Planetary Science

    Mars Photo of the Day