SMRTR Science & EngineeringJun 23, 2025Hacker News

NASA's Voyager Found a 30k-50k Kelvin "Wall" at the Edge of Solar System

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NASA's Voyager probes, launched in 1977, have reached the edge of our Solar System, known as the heliopause. This boundary, where the Sun's magnetic field meets interstellar space, features a "wall of fire" with temperatures reaching 30,000-50,000 kelvin. Voyager 1 crossed this threshold in 2012, followed by Voyager 2 in 2018. The probes continue to send data from beyond the Solar System, revealing surprising findings about magnetic fields and helping scientists better understand the dynamics of this cosmic frontier.

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