• Dawn dips down to Vesta

    Updated: 2011-12-21 17:43:02
    Last July, the spacecraft Dawn slipped into orbit around Vesta, one of the largest asteroids in the solar system — the first time a probe had ever orbited a main-belt asteroid. From its height of 16,000 km (almost 10,000 miles), it started mapping the 500 km (300 mile) wide rock, returning the first close-up pictures [...]

  • Viewing Times and Tips for Saturday Morning’s Lunar Eclipse

    Updated: 2011-12-09 20:20:48
    By Steve Edberg The last lunar eclipse until 2014 will grace the sky on Saturday, Dec. 10. Steve Edberg, an astronomer at NASA’s Jet Propulsion Laboratory, shares the best viewing times and tips. For more lunar eclipse resources and to join NASA/JPL’s “I’m There: Lunar Eclipse” event, visit http://1.usa.gov/uBfAI8. Keith Burns submitted this winning photo of the [...]

  • Getting the Lowdown on Asteroid Vesta

    Updated: 2011-12-05 18:59:40
    By Marc Rayman As NASA’s Dawn spacecraft investigates its first target, the giant asteroid Vesta, Marc Rayman, Dawn’s chief engineer, shares a monthly update on the mission’s progress. This 3-D video incorporates images from the framing camera instrument aboard NASA’s Dawn spacecraft from July to August 2011. The images were obtained as Dawn approached Vesta and circled [...]

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