New Horizons Watches the Solar Wind as it Slows Down

An artist's conception of the heliosphere, the bubble generated by the Sun's magnetic field and envelopes the solar system. The Sun generates the solar wind that flows out past the planets. Credit: NASA's Goddard Space Flight Center Conceptual Image Lab

Where does the Solar System end and interstellar space begin? That’s a question scientists have been working to answer using spacecraft traveling out beyond the Sun’s influence. A team of researchers from the Southwest Research Institute led by Heather Elliott, is using the Solar Wind around Pluto instrument onboard New Horizons to track the solar wind in the outer reachers of the Solar System.

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