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: Distant interplanetary adventurer

Posted by Marc Rayman on 2013/08/30 04:28 CDT | 1 comment

Traveling confidently and alone, Dawn continues to make its way through the silent depths of the main asteroid belt. The interplanetary adventurer is on its long journey to the uncharted dwarf planet Ceres, by far the largest of all asteroids.

Read More »

Dawn Journal: Craving Power

Posted by Marc Rayman on 2013/07/30 01:12 CDT | 5 comments

Ion propulsion is not a source of power for Dawn. Rather, the craft needs a great deal of power to operate its ion propulsion system and all other systems. It needs so much that...we crave power!!

Read More »

Dawn Journal: Breaking Velocity Records

Posted by Marc Rayman on 2013/07/02 10:26 CDT | 7 comments

The indefatigable Dawn spacecraft is continuing its extraordinary interplanetary flight on behalf of inquisitive creatures on distant Earth. Progressing ever farther from Vesta, the rocky and rugged world it so recently explored, the ship is making good progress toward its second port of call, dwarf planet Ceres.

Read More »

Dawn journal: Thrusting to a new personal best

Posted by Marc Rayman on 2013/06/02 12:07 CDT | 2 comments

Traveling from one alien world to another, Dawn is reliably powering its way through the main asteroid belt with its ion propulsion system. Vesta falls farther and farther behind as the spacecraft gently and patiently reshapes its orbit around the sun, aiming for a 2015 rendezvous with dwarf planet Ceres.

Read More »

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.

Read More »

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.

Read More »

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 »

Items 11 - 20 of 91  Previous12345678910Next
Facebook Twitter Email RSS AddThis

JOIN THE
PLANETARY SOCIETY

Our Curiosity Knows No Bounds!

Become a member of The Planetary Society and together we will create the future of space exploration.

Join Us

Featured Images

NGC 6365

M29
Globular cluster M4
Caprock and sand ripples, Curiosity sol 679
More Images

Featured Video

View Larger »

Fly to an Asteroid!

Travel to Bennu on the OSIRIS-REx spacecraft!

Send your name

Join the New Millennium Committee

Let’s invent the future together!

Become a Member

Connect With Us

Facebook! Twitter! Google+ and more…
Continue the conversation with our online community!