NASA's Voyager 1 spacecraft is humanity's first probe ever to reach interstellar space. See the major milestones of Voyager's trek to the void in this SPACE.com photo timeline.

Voyager 1's interstellar moment . Voyager 1 became the first human-made object to explore interstellar space — the space between the stars in a galaxy — when it was 122 astronomical units (AU ...

Voyager 1 and 2 have traveled farther than any human-made object—well beyond the planets and into interstellar space. But ...

Voyager 1, First Craft in Interstellar Space, ... When Voyager 1 launched in 1977, scientists hoped it could do what it was built to do and take up-close images of Jupiter and Saturn.

Like Voyager 1, Voyager 2 is still active and operational. It took a different route through the solar system and is expected to follow its twin into interstellar space a few years from now.

In the vast expanse of interstellar space, Voyager 1 continues its extraordinary journey, defying expectations and pushing ...

NASA engineers have succeeded in breathing new life into Voyager 1, the spacecraft launched in 1977 and once again communicating after it went silent seven months ago.But now comes another ...

NASA/JPL-Caltech via CNN Newsource This artist's concept depicts NASA's Voyager 1 spacecraft entering interstellar space, or the space between stars. Interstellar space is dominated by the plasma ...

NASA engineers spent months doggedly trying to fix a computer on Voyager 1, a spacecraft launched in the 1970s that’s now exploring interstellar space.

Voyager 1 and its twin spacecraft, Voyager 2, are the only operating probes flying in the interstellar medium, the diffuse gas between the stars. Their prime missions are long over.

Voyager 2 would later begin its own trek into deep space. Before it went offline, Voyager 1 had been studying an anomalous disturbance in the magnetic field and plasma particles in interstellar space.

Voyager 1 and its identical sister craft, Voyager 2, were launched on missions to study the outer solar system and interstellar space. (Space Frontiers/Getty Images) ...