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The Sun is constantly spewing solar wind, a stream of charged particles, into interplanetary space. Occasionally, it bursts ...
Both probes have departed the heliosphere, the vast magnetic bubble created by the sun and surrounding our solar system. They are now just outside the heliopause, the boundary marking the end of ...
NASA’s Voyager 1 and 2 are the only probes to cross into interstellar space, but their outdated instruments can’t fully analyze the heliosphere’s boundaries. The heliosphere blocks cosmic ...