Year in Review: Voyager 1 reaches interstellar space
Planetary probe is first to pass beyond heliosphere

GOING THE DISTANCE Voyager 1 is the first human-made object to break out of the heliosphere.
JPL-Caltech/NASA
Planetary probe is first to pass beyond heliosphere
GOING THE DISTANCE Voyager 1 is the first human-made object to break out of the heliosphere.
JPL-Caltech/NASA