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Dawn Journal: Orbital Trajectories

Posted by Marc Rayman on 2014/04/01 09:48 CDT | 3 comments

Marc Rayman updates us on Dawn's status and explains how the spacecraft is actually getting closer to Earth at the moment as it moves deeper into the asteroid belt.

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LPSC 2014: Water on...Vesta?

Posted by Emily Lakdawalla on 2014/03/21 04:03 CDT | 3 comments

At the Lunar and Planetary Science Conference, Jennifer Scully discussed possible water-carved gullies in an unusual location: within craters on Vesta. Water-carved gullies on Mars I can accept; but on an airless lumpy body? I was intrigued.

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Intro Astronomy Class 7: Near Earth Asteroids and the Jupiter System

Posted by Bruce Betts on 2014/03/21 02:10 CDT

Examine the threat of near Earth asteroids and begin exploring the Jupiter System in this video of class 7 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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Intro Astronomy Class 6: Mars (continued) and Asteroids

Posted by Bruce Betts on 2014/03/14 06:10 CDT

Continue exploring Mars and learn about asteroids in this video of class 6 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

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Pretty Picture: Three Wanderers

Posted by Emily Lakdawalla on 2014/03/12 12:34 CDT

With all the excitement happening on missions criscrossing the solar system, I often forget to enjoy the views of our solar system that we can achieve from home. Amateur astronomers don't make the same mistake. Here's a lovely photo that Stuart Atkinson sent me, captured last night from Kendal, England, showing four special wanderers.

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Dawn Journal: Maneuvering Around Ceres

Posted by Marc Rayman on 2014/03/03 06:00 CST | 2 comments

Continuing its daring mission to explore some of the last uncharted worlds in the inner solar system, Dawn remains on course and on schedule for its rendezvous with dwarf planet Ceres next year.

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A Spin Through the Inner Solar System

Posted by Bill Dunford on 2014/02/24 09:57 CST | 1 comments

Animated maps of the planets show the spheres in motion.

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Dawn Journal: Onward to Ceres

Posted by Marc Rayman on 2014/02/01 10:58 CST | 4 comments

The majority of Dawn's time in the Ceres approach phase will be devoted to continuing ion-powered flight. Let’s take another look at how this remarkable technology is used to deliver the adventurer to the desired orbit around Ceres.

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Dawn Journal: Planning for the Ceres Approach Phase

Posted by Marc Rayman on 2014/01/01 10:43 CST | 4 comments

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. Now that the ship is closer to the uncharted shores ahead than the lands it unveiled astern, we will begin looking at the plans for exploring another alien world.

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What's up in planetary missions in 2014

Posted by Emily Lakdawalla on 2013/12/31 01:15 CST | 4 comments

With the New Year upon us, what can we look forward to in 2014? For me, the main event of 2014 is that ESA's Rosetta mission finally -- finally! -- catches up to the comet it has been chasing for a decade. We will lose LADEE, gain two Mars orbiters, and launch Hayabusa 2. The year begins with an amazing 24 spacecraft exploring or cruising toward various planetary destinations.

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Dawn Journal: Equidistant from Vesta and Ceres

Posted by Marc Rayman on 2013/12/06 08:31 CST | 1 comments

Gliding smoothly through the main asteroid belt between Mars and Jupiter, Dawn continues to make good progress on its ambitious mission of exploration. It is patiently but persistently pursuing Ceres, the second destination on its interplanetary itinerary.

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Dawn Journal: Thrusting Toward Ceres

Posted by Marc Rayman on 2013/11/03 05:45 CST | 1 comments

Deep in the main asteroid belt between Mars and Jupiter, Dawn is continuing its smooth, silent flight toward dwarf planet Ceres. Far behind it now is the giant protoplanet Vesta, which the spacecraft transformed from a tiny splotch in the night sky to an exotic and richly detailed world.

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Dawn Journal: Sixth anniversary of leaving Earth

Posted by Marc Rayman on 2013/09/28 06:29 CDT | 2 comments

On the sixth anniversary of leaving Earth to embark on a daring deep-space expedition, Dawn is very, very far from its erstwhile planetary residence. Now humankind's only permanent resident of the main asteroid belt between Mars and Jupiter, the seasoned explorer is making good progress toward the largest object in that part of the solar system, the mysterious dwarf planet Ceres.

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Two new ways to browse Vesta: 2. Vesta Image data browser

Posted by Emily Lakdawalla on 2013/09/16 10:57 CDT

A few weeks ago I received an email pointing me to a really cool new map-based browser to Dawn's Vesta image data.

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Two new ways to browse Vesta: 1. Vesta Low-Altitude Mapping Orbit (LAMO) Atlas

Posted by Emily Lakdawalla on 2013/09/16 10:57 CDT

Last week was the European Planetary Science Congress in London, and there's been a lot of science news. One thing that caught my eye Friday was the publication of a new atlas for Vesta.

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Dawn journal: Distant interplanetary adventurer

Posted by Marc Rayman on 2013/08/30 04:28 CDT | 1 comments

Traveling confidently and alone, Dawn continues to make its way through the silent depths of the main asteroid belt. The interplanetary adventurer is on its long journey to the uncharted dwarf planet Ceres, by far the largest of all asteroids.

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Producing global views of Vesta from archival data

Posted by Björn Jónsson on 2013/08/21 12:18 CDT | 3 comments

Björn Jónsson produces beautiful color and 3D global mosaics of Vesta from Dawn's archival data.

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Dawn Journal: Craving Power

Posted by Marc Rayman on 2013/07/30 01:12 CDT | 5 comments

Ion propulsion is not a source of power for Dawn. Rather, the craft needs a great deal of power to operate its ion propulsion system and all other systems. It needs so much that...we crave power!!

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Dawn Journal: Breaking Velocity Records

Posted by Marc Rayman on 2013/07/02 10:26 CDT | 7 comments

The indefatigable Dawn spacecraft is continuing its extraordinary interplanetary flight on behalf of inquisitive creatures on distant Earth. Progressing ever farther from Vesta, the rocky and rugged world it so recently explored, the ship is making good progress toward its second port of call, dwarf planet Ceres.

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Worlds in Collision

Posted by Bill Dunford on 2013/06/25 04:38 CDT | 6 comments

Meet some worlds that were nearly shattered, literally.

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