Help Shape the Future of Space Exploration

Join The Planetary Society Now  arrow.png

Join our eNewsletter for updates & action alerts

    Please leave this field empty
Blogs

Dawn Journal

Dawn Journal: Revisiting orbital mechanics

Posted by Marc Rayman on 2013/03/01 09:02 CST | 1 comment

Now that Dawn has changed its speed by nearly eight kilometers per second, Marc Rayman revisits the concept of orbital velocity.

Read More »

Dawn journal: Vesta's mountains, gorges and craters

Posted by Marc Rayman on 2013/01/31 06:09 CST | 1 comment

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

Read More »

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.

Read More »

Dawn Journal: Hydrazine Haste Makes Waste

Posted by Marc Rayman on 2012/12/05 11:02 CST | 1 comment

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.

Read More »

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.

Read More »

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.

Read More »

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.

Read More »

Dawn Journal: The long, slow goodbye

Posted by Marc Rayman on 2012/07/26 12:40 CDT | 1 comment

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

Read More »

Dawn Journal: Seeing Vesta in a New Light

Posted by Marc Rayman on 2012/07/06 02:33 CDT | 1 comment

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

Read More »

Dawn Journal: Riding gravitational currents to HAMO2

Posted by Marc Rayman on 2012/06/05 03:30 CDT

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.

Read More »

Items 41 - 50 of 115  Previous12345678910Next
Facebook Twitter Email RSS AddThis

Essential Advocacy

Our Advocacy Program 
provides each Society member 
a voice in the process.



Funding is critical. The more 
we have, the more effective 
we can be, translating into more 
missions, more science, 
and more exploration.

Donate

Featured Images

Cleaning up the QM-2 deluge
QM-2 test firing
QM-2 booster smokes the hillside
Qualification Motor 2
More Images

Featured Video

The Planetary Post - James Webb Space Telescope

Watch Now

Space in Images

Pretty pictures and
awe-inspiring science.

See More

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook, Twitter, YouTube and more…
Continue the conversation with our online community!