Latest Marc Rayman Stories
NASA's Dawn spacecraft is closing in on Vesta, and from now until the ion-powered spacecraft goes into orbit in mid-July, every picture of the giant asteroid will be the best one ever taken.
After 3 and a half years of thrusting silently through the void, NASA's Dawn spacecraft is on the threshold of a new world.
Let the countdown begin. NASA's Dawn spacecraft is less than one year away from giant asteroid Vesta.
Engineers are studying the reaction wheels on NASA's Dawn spacecraft after automatic sensors detected excess friction building up in one of them and powered it off early on the morning of June 17, 2010.
Dawn, NASA's cutting edge mission to the asteroid belt, will use ion propulsion to perform space moves rivaling those of Star Trek's USS Enterprise.
Launched in September of 2007, and propelled by any one of a trio of hyper-efficient ion engines, NASA's Dawn spacecraft passed the orbit of Mars last summer. Now, the spacecraft is plunging toward the red planet, and scientists couldn't be happier.
NASA's Dawn spacecraft rocketed away Thursday toward an unprecedented double encounter in the asteroid belt. Dawn's mission is the world's first attempt to journey to a celestial body and orbit it, then travel to another and circle it as well.
It's called Dawn, and in a little more than a year, this spacecraft will blast off from Florida, bound for two separate asteroids: Vesta and Ceres. Visiting the two most massive asteroids in our Solar System will be an ambitious undertaking; maybe one of the most difficult and dangerous orbital missions attempted.
- A person who stands up for something, as contrasted to a bystander who remains inactive.
- One of the upright handlebars on a traditional Inuit sled.