PLANETARY SCIENCE:
Deep Space 1 Traces Braille Back to Vesta
Richard A. Kerr
Asteroids tend to wander far from home, but researchers can now reunite a wayward offspring with its "parent" in the main asteroid belt between Mars and Jupiter. At a press conference last week at the Jet Propulsion Laboratory in Pasadena, California, researchers announced that observations of an asteroid called Braille, returned by the Deep Space 1 spacecraft last week, show that the 2-kilometer-long rock is probably a chip blasted off the 500-kilometer asteroid Vesta, the third largest in the solar system.