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Voyager: 12 images that define NASA's longest-lasting mission

45 years and counting.

NASA/JPL

Its’ been almost 45 years since NASA launched its Voyager mission.

The two probes sent to survey the Solar System in 1977 have now traveled further than any human-made object ever sent to explore to universe.

Universal History Archive/Universal Images Group/Getty Images

VW Pics/Universal Images Group/Getty Images

The probes are currently drifting through interstellar space over 12 billion miles from our home planet.

For comparison, the Sun is roughly 3.7 billion miles from Pluto.