Word: cerese
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The odd duck of a spacecraft, scheduled to launch in September, is known simply as Dawn, and its destinations are the asteroid Vesta and the dwarf planet Ceres, mysterious bodies orbiting in the belt of rubble that circles the sun between Mars and Venus. NASA vehicles have been this way...
There's good reason to spend so much time and money--Dawn carries a $446 million price tag--getting to Ceres and Vesta. The composition and reflectivity of the bodies suggest they were formed within the first 3 million years of the solar system's life, whereas Earth was something...
Not only are the little worlds old, but they're also odd. Vesta, which measures about 330 miles (531 km) at maximum diameter, or roughly the width of Arizona, is thought to account for 1 out of 20 meteorites that strike Earth, while Ceres, which is closer to us, provides...
To ensure that it can uncover the secrets of both worlds, Dawn will ease itself into a six-month orbit around Vesta, then climb gradually back out and fly on to Ceres, which it will orbit for about five months. This is the part that would have been simply too...
"To see a company propose conventional coal plants on the scale of TXU is pretty disturbing for shareholders," says Dan Bakal, director of Electric Power Programs at Ceres, a coalition of investors, environmentalists and public-interest groups. Miner-tough Mike McCall is having none of that argument. Asked if he...