Voyager 2 Probe Enters Interstellar Space Scientists say the NASA probe crossed out of the heliosphere into interstellar space on November 5. The heliosphere is described as a plasma bubble that is created by the sun. Suzanne Dodd, Voyager Project Manager, via Endgadget Launched in 1977, Voyager 2 is now 11 billion miles from earth. On board the probe is a Plasma Science Experiment. The instrument is designed to take measurements of solar wind. Voyager 2 is still considered to be in the solar system. Scientists estimate it will take the craft 30,000 years to exit the outer edge.
