Voyager 2 Spacecraft Reaches Interstellar Space
It's time to say goodbye to one of the most storied explorers of our age: Voyager 2 has entered interstellar space, NASA announced Dec. 10.
Voyager 2, which launched in 1977, has spent more four decades exploring our solar system, most famously becoming the only probe ever to study Neptune and Uranus during planetary flybys. Now, it has joined its predecessor Voyager 1 beyond the bounds of our sun's influence, a milestone scientists weren't able to precisely predict when would occur.
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