NASA's Dawn Spacecraft Begins Science Orbits of Vesta
NASA's Dawn spacecraft, the first ever to orbit an object in the main asteroid belt, is spiralling towards its first of four intensive science orbits. That initial orbit of the rocky world Vesta begins Aug. 11, at an altitude of nearly 2,700 kilometres and will provide in-depth analysis of the asteroid. Vesta is the brightest object in the asteroid belt as seen from Earth and is thought to be the source of a large number of meteorites that fall to Earth. Read more
NASA will host a news conference on Monday, Aug. 1, at 9 a.m. PDT (noon EDT), to discuss the Dawn spacecraft's successful orbit insertion around Vesta on July 15 and unveil the first full-frame images from Dawn's framing camera. The news conference will be held in the von Karman auditorium at NASA's Jet Propulsion Laboratory, 4800 Oak Grove Dr., Pasadena, Calif. Read more
The giant asteroid Vesta is revealing more of itself to the US space agency's (Nasa) Dawn mission. The probe has beamed back further images since entering into orbit around the 530km-wide rock on 17 July. Read more
NASA's Dawn Spacecraft Enters Orbit Around Asteroid Vesta
NASA's Dawn spacecraft on Saturday became the first probe ever to enter orbit around an object in the main asteroid belt between Mars and Jupiter. Dawn will study the asteroid, named Vesta, for a year before departing for a second destination, a dwarf planet named Ceres, in July 2012. 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. Read more
Engineers expect the spacecraft to be captured into orbit at approximately 10 p.m. PDT Friday, July 15 (1 a.m. EDT Saturday, July 16). They expect to hear from the spacecraft and confirm that it performed as planned during a scheduled communications pass that starts at approximately 11:30 p.m. PDT on Saturday, July 16 (2:30 a.m. EDT Sunday, July 17). When Vesta captures Dawn into its orbit, engineers estimate there will be approximately 16,000 kilometres between them. At that point, the spacecraft and asteroid will be approximately 188 million kilometres from Earth. Source