Turning what seemed like a science fiction tale into reality, an unmanned probe swung alongside a comet on Wednesday after a 4-billion mile (6.4-billion kilometer) chase through outer space over the course of a decade.
Turning what seemed like a science fiction tale into reality, an unmanned probe swung alongside a comet on Wednesday after a 4-billion mile (6.4-billion kilometer) chase through outer space over the course of a decade.
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