It’s coming up fast. The March 6th orbital injection of the Dawn spacecraft about the dwarf planet Ceres is set to be an incredible event. The latest photos show a much more detailed Ceres that we have seen previously. The newest images reveal that Ceres is a rocky, cratered world, not unlike the Moon or Mercury. Still, we have yet to determine the origins of the bright spots on the surface. Just over two weeks from now the world will see an unmasked Ceres.
There has been a lot to talk about with our home solar system lately. Spacecraft approaching dwarf planets, robots on Mars, and all kinds of orbiters giving new insights and views we had never expected. It’s a heavy news year for Planetary Science, and the great stories keep creeping up! Today we have an update on the Dawn spacecraft approaching Ceres. The picture I posted on January 20th (shown below) was from 380,000 Km away, comparable to the distance between Earth and the Moon. Now, about 2 weeks later, Dawn is only 145,000 Km away, and the view is much clearer!...
…and not the ‘dawn’ we refer to when watching a sunrise. Dawn is a NASA spacecraft that was launched in 2007 with the goal of exploring the asteroid belt by observing its largest and most interesting objects up close. The two largest asteroids, Vesta and Ceres, have been the largest mission goals of Dawn as it has journeyed through the belt. From July 2011 to September 2012, Dawn was in orbit around the 525 Km wide Vesta, snapping amazing photos and studying the giant in detail. Since it’s departure from Vesta in September 2012, the craft has been on route...
Vesta is the 2nd-largest Asteroid in the well known asteroid belt between the orbits of Mars and Jupiter. 525 Km in diameter, it is very big for an asteroid. If it was much bigger we would call it a dwarf planet. The Dawn Spacecraft, launched in 2007, stopped by Vesta in 2011 and stuck with it until 2012 as it orbited the sun. We are still seeing the results of that rendezvous, and just recently NASA released a complete map of the surface features of Vesta. It’s amazing to see so many interesting surface features on such a small world. Geologic...
