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Ceres is round!

Emily Lakdawalla • December 05, 2014

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.

Dawn Journal: Looking Ahead at Ceres

Marc Rayman • December 01, 2014

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

Dawn Journal: Ion thrusting (or not)

Marc Rayman • November 02, 2014

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

What did Dawn learn at Vesta?

Emily Lakdawalla • October 09, 2014

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.

Dawn Journal: 7 Years of Interplanetary Travel

Marc Rayman • September 27, 2014

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

Pretty pictures: Vesta's dark material

Emily Lakdawalla • September 05, 2014

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

Dawn Journal: From HAMO to LAMO and Beyond

Marc Rayman • September 02, 2014

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.

Dawn Journal: Not-So-Quiet Cruise

Marc Rayman • August 01, 2014

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

Dark mountain on Vesta: Aricia Tholus

Emily Lakdawalla • July 28, 2014

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

Dawn Journal: HAMO at Ceres

Marc Rayman • July 01, 2014

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).

Dawn Journal: Survey Orbit at Ceres

Marc Rayman • June 03, 2014

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

The value of a Guest Investigator program for Dawn

Anne Verbiscer • May 23, 2014

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.

Dawn Journal: Explaining Orbit Insertion

Marc Rayman • May 06, 2014

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.

Dawn Journal: Orbital Trajectories

Marc Rayman • April 01, 2014

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.

LPSC 2014: Water on...Vesta?

Emily Lakdawalla • March 21, 2014

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.

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

Bruce Betts • March 21, 2014

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.

Intro Astronomy Class 6: Mars (continued) and Asteroids

Bruce Betts • March 14, 2014

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

Pretty Picture: Three Wanderers

Emily Lakdawalla • March 12, 2014

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.

Dawn Journal: Maneuvering Around Ceres

Marc Rayman • March 03, 2014

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.

A Spin Through the Inner Solar System

Bill Dunford • February 24, 2014

Animated maps of the planets show the spheres in motion.

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