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Blog Archive

 

Ceres Coming Into View

Posted by Paul Schenk on 2015/02/03 05:23 CST | 1 comments

Dawn is on approach to Ceres, the largest of the asteroids, and is starting to resolve features.

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Dawn Journal: Closing in on Ceres

Posted by Marc Rayman on 2015/01/30 08:31 CST | 7 comments

Dawn's chief engineer Marc Rayman gives an update on the mission as it gets ever closer to its next target: The dwarf planet Ceres.

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Ceres: Just a little bit closer (and officially better than Hubble)

Posted by Emily Lakdawalla on 2015/01/27 06:26 CST | 5 comments

Last week's Dawn images of Ceres were just slightly less detailed than Hubble's best. This week's are just slightly better.

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New Dawn images of Ceres: comparable to Hubble

Posted by Emily Lakdawalla on 2015/01/20 09:06 CST | 9 comments

Dawn has captured a series of photos of a rotating Ceres whose resolution is very close to Hubble's, and they show tantalizing surface details.

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Year of the 'Dwarves': Ceres and Pluto Get Their Due

Posted by Paul Schenk on 2015/01/15 12:18 CST | 1 comments

This year we achieve the first exploration of these curious but fascinating objects. Paul Schenk explains what we may learn about them.

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Planetary exploration in 2015: The Year of the Dwarf Planet

Posted by Emily Lakdawalla on 2014/12/31 10:49 CST | 8 comments

Looking ahead to what we can expect from Earth's exploration of the rest of the solar system in 2015, there's an obvious theme: Dwarf planets.

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Dawn Journal: History of Ceres

Posted by Marc Rayman on 2014/12/29 01:25 CST | 14 comments

As Dawn looks toward the new world of Ceres, Mission Director Marc Rayman looks back on Ceres' discovery.

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Ceres is round!

Posted by Emily Lakdawalla on 2014/12/05 02:44 CST | 3 comments

Okay, so the fact that Ceres is round is not news. It's still thrilling to see Ceres begin to come into focus as a round world.

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Dawn Journal: Looking Ahead at Ceres

Posted by Marc Rayman on 2014/12/01 02:51 CST | 1 comments

This month, Marc Rayman looks ahead to some upcoming activities for Dawn as it approaches the dwarf planet Ceres.

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Dawn Journal: Ion thrusting (or not)

Posted by Marc Rayman on 2014/11/02 02:30 CST | 8 comments

Marc Rayman gives the latest update on the Dawn mission, focusing this time on the performance of its ion propulsion system.

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What did Dawn learn at Vesta?

Posted by Emily Lakdawalla on 2014/10/09 03:53 CDT | 12 comments

It's now been two years since Dawn wrapped up its work at the second-largest asteroid. What else did we get from the Vesta encounter besides great photos? Recently, I asked Dawn's deputy project scientist, Carol Raymond, for help in summarizing a few of the big things Dawn taught us.

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Dawn Journal: 7 Years of Interplanetary Travel

Posted by Marc Rayman on 2014/09/27 07:43 CDT | 6 comments

Marc Rayman gives us an update on the Dawn mission, heading to Ceres, on the 7th anniversary of its launch.

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Pretty pictures: Vesta's dark material

Posted by Emily Lakdawalla on 2014/09/05 10:38 CDT | 1 comments

More masterful processing of Dawn Vesta images by Björn Jónsson, including Aelia crater and some mysterious dark splats near Fulvia crater.

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Dawn Journal: From HAMO to LAMO and Beyond

Posted by Marc Rayman on 2014/09/02 06:40 CDT | 10 comments

Marc Rayman updates us on the Dawn mission, its plans from high to low altitude mapping orbits at Ceres, and what the intrepid spacecraft will pursue next.

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Dawn Journal: Not-So-Quiet Cruise

Posted by Marc Rayman on 2014/08/01 05:35 CDT | 13 comments

Dawn's Mission Director updates us on the status of the mission, and tells us what Dawn and Star Wars have in common.

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Dark mountain on Vesta: Aricia Tholus

Posted by Emily Lakdawalla on 2014/07/28 03:07 CDT | 1 comments

Newly processed images of one of the more puzzling features on the surface of Vesta: a dark mountain named Aricia Tholus.

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Dawn Journal: HAMO at Ceres

Posted by Marc Rayman on 2014/07/01 11:34 CDT | 9 comments

Dawn's chief engineer and mission director Marc Rayman gives an overview of the plan for the penultimate orbital phase at Ceres, the “high altitude mapping orbit” (HAMO).

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Dawn Journal: Survey Orbit at Ceres

Posted by Marc Rayman on 2014/06/03 09:59 CDT | 2 comments

This month Dawn's mission director Marc Rayman continues the preview of how Dawn will explore Ceres, this time in its survey orbit.

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The value of a Guest Investigator program for Dawn

Posted by Anne Verbiscer on 2014/05/23 09:20 CDT | 1 comments

NASA selected 21 Participating Scientists to join the Dawn team in 2010, prior to Dawn's arrival at Vesta in 2011. Since that time, Dawn Participating Scientists have made enormous contributions to the mission, as they do for most other NASA missions. But the status of a Participating Scientist program for Dawn at Ceres has been in doubt.

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Dawn Journal: Explaining Orbit Insertion

Posted by Marc Rayman on 2014/05/06 08:21 CDT | 4 comments

Less than a year from its rendezvous with dwarf planet Ceres, Dawn is continuing to make excellent progress on its ambitious interplanetary adventure. But once it gets to Ceres, just how will it go into orbit? Marc Rayman explains.

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