US spacecraft Dawn orbits asteroíd Vesta

[quote]The US spacecraft Dawn has entered the orbit of Vesta, one of the largest asteroíds in the solar system, the US space agency NASA announced on Sunday.

Dawn is expected to cóme within 16,000 kms of Vesta to study its surface while traveling 188 million kms from Earth.

"It has taken nearly four years to get to this point," said Robert Mase, manager of the $US466 million ($A436.0 million) project at NASA's Jet Propulsion Laboratory in Pasadena, California.

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