
OMG We better get Bruce Willis ready for another mission. I have just been looking at some never before seen images of a giant asteroid and they are amazing pictures. Although it is not set to come crashing into earth it is still pretty amazing. Here is some information about it. Follow the links below to see and read some more.
NASA’s Dawn spacecraft photographed the giant asteroid Vesta from orbit on July 24, 2011. I have been following with great interest this NASA mission since it launched back in September 2007. Dawn was captured by Vesta’s weak gravity and went into orbit on July 15th.
Dawn will stay in orbit around Vesta for about a year before moving on to the dwarf planet Ceres, arriving in February 2015. ”Vesta is thought to be the source of a large number of meteorites that fall to Earth. Vesta and its new NASA neighbor, Dawn, are currently approximately 117 million miles (188 million kilometers) away from Earth. The Dawn team will begin gathering science data in August. Observations will provide unprecedented data to help scientists understand the earliest chapter of our solar system.
The data also will help pave the way for future human space missions. The Dawn science team is working to determine the significance of the distinct features in this image, which include large grooves or ridges extending for great distances around Vesta.”
“Vesta is 330 miles (530 kilometers) in diameter and the second most massive object in the asteroid belt. Ground- and space-based telescopes have obtained images of Vesta for about two centuries, but they have not been able to see much detail on its surface.
“We are beginning the study of arguably the oldest extant primordial surface in the solar system,” said Dawn principal investigator Christopher Russell from the University of California, Los Angeles. “This region of space has been ignored for far too long. So far, the images received to date reveal a complex surface that seems to have preserved some of the earliest events in Vesta’s history, as well as logging the onslaught that Vesta has suffered in the intervening eons.”
“Dawn’s initial orbit around Vesta carries it over the asteroid’s poles at an altitude of roughly 1,700 miles. The orbit’s orientation keeps the spacecraft and its huge solar panels in direct sunlight to provide power for its instruments and its propulsion system. Traveling from north to south, Dawn will complete one orbit every three Earth days.
Because Vesta completes one rotation or “day,” every five hours and 20 minutes, Dawn will be able to observe the asteroid’s entire illuminated surface every orbit. During south-to-north passes above Vesta’s night side, Dawn will transmit stored images and other data back to Earth.” Continue reading more and see more photographs: on NASA’s site here. and on CNN here.