Voyager spacecraft against a backdrop of stars as it travels through space.

Voyager 1 marks 10 years in interstellar space

Humankind has now spent an entire decade exploring interstellar space. 

On Aug. 25, 2012, NASA’s Voyager 1 spacecraft was 11 billion miles (18 billion kilometers) from the sun and scientists determined that the venerable spacecraft had crossed the boundary between the sun’s influence and the interstellar medium. Now, still going and still sending back data, Voyager 1 and its twin Voyager 2 — which joined it in interstellar space in 2018 — continue to conduct ground-breaking science. 

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