As it completes the first of three laps of about a billion miles each around the heart of the solar system, NASA’s Stardust spacecraft is getting ready for a pit stop of sorts, flying by Earth in mid-January for a gravitational speed boost.
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As it completes the first of three laps of about a billion miles each around the heart of the solar system, NASA’s Stardust spacecraft is getting ready for a pit stop of sorts, flying by Earth in mid-January for a gravitational speed boost.