The venerable Voyager 1 spacecraft, still going after 36 years, has reached the unchartered territory of interstellar space–the first human emissary to leave the solar-inflared bubble of charged particles known as the heliosphere

The venerable Voyager 1 spacecraft, still going after 36 years, has reached the unchartered territory of interstellar space–the first human emissary to leave the solar-inflared bubble of charged particles known as the heliosphere.

Voyager 1 has entered interstellar space. Credit: JPL-CalTech/NASA
Voyager 1 has entered interstellar space. Credit: JPL-CalTech/NASA