Herschel Spacecraft Eyes Asteroid Apophis
Scientists using the Herschel Space Observatory made new observations of asteroid Apophis as it approached Earth this past weekend. The data show the asteroid to be bigger than first estimated, and less reflective. And based on data collected by telescopes during today's close approach, scientists are expected to refine the asteroid's orbit to the point where an impact with Earth in 2036 can be ruled out.
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