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Dawn Journal

Dawn Journal: Vesta's Mountains, Gorges and Craters

Marc Rayman • January 31, 2013 • 1

As Dawn continues thrusting toward Ceres, Marc takes a look back at the intrepid spacecraft's discoveries.

Dawn Journal: Faraway Viewing Through the Mind's Eye

Marc Rayman • January 02, 2013

As Dawn treks onward to Ceres, its path will cross within a few degrees of the moon as seen from Earth on Jan. 21–22.

Dawn Journal: Hydrazine Haste Makes Waste

Marc Rayman • December 05, 2012 • 1

By saving fuel, Dawn will arrive at Ceres in 2015 with about half of the 45.6-kilogram (101-pound) hydrazine supply it had when it rocketed away from Cape Canaveral.

Dawn Journal: Scary-Good Ion Propulsion

Marc Rayman • October 31, 2012

Dawn continues to raise its orbit en route to its 2015 date with Ceres. Also, Marc prepares his high-energy Halloween costume.

Dawn Journal: Five years since launch

Marc Rayman • September 27, 2012 • 2

On the fifth anniversary of its launch, Dawn is on the way to Ceres.

Dawn Journal: Back to interplanetary space

Marc Rayman • September 06, 2012

After more than a year in orbit, Dawn has left Vesta, beginning the spacecraft's journey to Ceres.

Dawn Journal: The long, slow goodbye

Marc Rayman • July 26, 2012 • 1

Dawn has completed the final intensive phase of its exploration of Vesta, and it has now begun its gradual departure for Ceres.

Dawn Journal: Seeing Vesta in a New Light

Marc Rayman • July 06, 2012 • 1

Once again Dawn is diligently mapping Vesta, circling the ancient protoplanet about twice a day, observing the signatures of Vesta's tortured history.

Dawn Journal: Riding gravitational currents to HAMO2

Marc Rayman • June 05, 2012

Dawn is beginning its departure from Vesta, spiraling upward from its low-altitude mapping orbit to a higher one from which it will map north polar terrain not visible during the earlier mapping orbit.

Dawn Journal: Rising from a happily long LAMO

Marc Rayman • May 03, 2012 • 3

Marc Rayman's monthly check-in with the Dawn mission describes the achievements of the spacecraft in its Low-Altitude Mapping Orbit (including near-global high-resolution imaging!) and explains what's next.

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