Planetary Science

  1. 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.

  2. 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.

  3. Planetary Science

    Mars Encounter

  4. 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.

  5. 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.

  6. 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.

  7. Planetary Science

    Mars Photo of the Day

  8. Planetary Science

    Roving on the Red Planet

    NASA last month selected the landing sites for rovers scheduled to begin exploring the Martian surface next January.

  9. Planetary Science

    Spacecraft reveal Mars’ molten heart

    Tracking the precise motion of a spacecraft orbiting Mars, planetary scientists have deduced that the core of the Red Planet is at least partially liquid.

  10. Planetary Science

    Red Planet

  11. Planetary Science

    Planets in Autumn

  12. Planetary Science

    Martian Gullies: Carved by melting snow?

    Melting snow may have sculpted the recently formed gullies found at midlatitudes on Mars.