After 17 years away, NASA's sun-studying spacecraft will visit Earth on Aug. 12

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NASA's groundbreaking spacecraft STEREO-A will return to Earth for a flying visit on Saturday (Aug. 12). The spacecraft, which has been away for 17 years, will team up with other NASA missions during its return.

After 17 years away, NASA's sun-studying spacecraft will visit Earth on Aug. 12 : Read more