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Dawn Journal

Now more than halfway through its journey from protoplanet Vesta to dwarf planet Ceres, Dawn is continuing to use its advanced ion propulsion system to reshape its orbit around the sun.
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NASA's Asteroid Hunter Spacecraft Returns First Images after Reactivation

NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE), a spacecraft that made the most comprehensive survey to date of asteroids and comets, has returned its first set of test images in preparation for a renewed mission.
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Dawn Creates Guide To Vesta's Hidden Attractions
Dawn Creates Guide To Vesta's Hidden Attractions

Some beauty is revealed only at a second glance. When viewed with the human eye, the giant asteroid Vesta, which was the object of scrutiny by the Dawn spacecraft from 2011 to 2012, is quite unspectacular color-wise.
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NASA's Dawn Fills out its Ceres Dance Card

What's the schedule for Dawn's visit to the largest object in the main asteroid belt?
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SOHO Shows New Images of Comet ISON
SOHO Shows New Images of Comet ISON

met ISON is heading towards closest approach to the sun - known as perihelion - on Nov. 28, 2013.
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NASA'S STEREO Shows Comet ISON Approaching the Sun
NASA'S STEREO Shows Comet ISON Approaching the Sun

The latest movie from the STEREO-A spacecraft's Heliospheric Imager shows the comet over a five-day period from Nov. 20 to Nov. 25, 2013.
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NASA Hosts Nov. 26 Teleconference and Nov. 28 Hangout to Discuss Comet Nearing Sun
NASA Hosts Nov. 26 Teleconference and Nov. 28 Hangout to Discuss Comet Nearing Sun

NASA will host a media teleconference Tuesday, Nov. 26 and a Google+ Hangout Thursday, Nov. 28 to discuss comet ISON's journey through our solar system.
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A Tale of Two Comets: MESSENGER Captures Images of Encke and ISON

On November 18 and 19, NASA's Mercury-orbiting MESSENGER spacecraft viewed comets Encke and ISON.
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Three Questions About Comet ISON
Three Questions About Comet ISON

Comet ISON will reach its closest approach to the sun on Thanksgiving Day (11/28/13), skimming just 730,000 miles above its surface.
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NASA's Solar Observing Fleet to Watch Comet ISON's Journey around the Sun

It began in the Oort cloud, almost a light year away. It has traveled for over a million years. It has almost reached the star that has pulled it steadily forward for so long. On Thanksgiving Day, Nov. 28, 2013, Comet ISON will finally ...
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