Spaceflight Insider

News Archive / Tagged: heliopause

  • Cosmic ray detection could mean Voyager 2 is close to interstellar space

    Laurel KornfeldOctober 6th, 2018

    Now almost 11 billion miles (17.7 billion km) from Earth, NASA's Voyager 2 spacecraft has detected an increasing amount of cosmic rays that originate beyond our solar system, leading some scientists to believe the probe is on the verge of entering interstellar space.