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Dawn Journal

Dawn Journal: Equidistant from Vesta and Ceres

Marc Rayman • December 06, 2013 • 1

Gliding smoothly through the main asteroid belt between Mars and Jupiter, Dawn continues to make good progress on its ambitious mission of exploration. It is patiently but persistently pursuing Ceres, the second destination on its interplanetary itinerary.

Dawn Journal: Thrusting Toward Ceres

Marc Rayman • November 03, 2013 • 1

Deep in the main asteroid belt between Mars and Jupiter, Dawn is continuing its smooth, silent flight toward dwarf planet Ceres. Far behind it now is the giant protoplanet Vesta, which the spacecraft transformed from a tiny splotch in the night sky to an exotic and richly detailed world.

Dawn Journal: Sixth anniversary of leaving Earth

Marc Rayman • September 28, 2013 • 2

On the sixth anniversary of leaving Earth to embark on a daring deep-space expedition, Dawn is very, very far from its erstwhile planetary residence. Now humankind's only permanent resident of the main asteroid belt between Mars and Jupiter, the seasoned explorer is making good progress toward the largest object in that part of the solar system, the mysterious dwarf planet Ceres.

Dawn Journal: Distant interplanetary adventurer

Marc Rayman • August 30, 2013 • 1

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.

Dawn Journal: Craving Power

Marc Rayman • July 30, 2013 • 5

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!!

Dawn Journal: Breaking Velocity Records

Marc Rayman • July 02, 2013 • 7

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.

Dawn Journal: Thrusting to a new personal best

Marc Rayman • June 02, 2013 • 2

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.

Dawn Journal: A low-orbit shortcut to Ceres

Marc Rayman • May 02, 2013

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

Marc Rayman • March 30, 2013 • 4

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

Marc Rayman • March 01, 2013 • 1

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

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