Blogs
Dawn Journal
Dawn journal: A low-orbit shortcut to Ceres
Posted by Marc Rayman on 2013/05/02 02:11 CDT
Marc Rayman's latest Dawn journal explains why Dawn is currently closer to the Sun than both Ceres and Vesta.
Dawn journal: Staying warm en route to Ceres
Posted by Marc Rayman on 2013/03/30 10:05 CDT | 4 comments
Marc Rayman's latest Dawn journal explains the temperature adjustments engineers make to save power and keep the spacecraft warm.
Dawn journal: Revisiting orbital mechanics
Posted by Marc Rayman on 2013/03/01 09:02 CST | 1 comments
Now that Dawn has changed its speed by nearly eight kilometers per second, Marc Rayman revisits the concept of orbital velocity.
Dawn journal: Vesta's mountains, gorges and craters
Posted by Marc Rayman on 2013/01/31 06:09 CST | 1 comments
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
Posted by Marc Rayman on 2013/01/02 04:38 CST
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
Posted by Marc Rayman on 2012/12/05 11:02 CST | 1 comments
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
Posted by Marc Rayman on 2012/10/31 12:34 CDT
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
Posted by Marc Rayman on 2012/09/27 03:37 CDT | 2 comments
On the fifth anniversary of its launch, Dawn is on the way to Ceres.
Dawn journal: Back to interplanetary space
Posted by Marc Rayman on 2012/09/06 12:49 CDT
After more than a year in orbit, Dawn has left Vesta, beginning the spacecraft's journey to Ceres.
Dawn journal: The long, slow goodbye
Posted by Marc Rayman on 2012/07/26 12:40 CDT | 1 comments
Dawn has completed the final intensive phase of its exploration of Vesta, and it has now begun its gradual departure for Ceres.
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