“NASA’s Voyager 1 probe has now left the solar system and is wandering the galaxy, US scientists said Thursday. The spacecraft was launched in 1977 on a mission to explore the outer planets of our solar system and to possibly journey into the unknown depths of outer space. US space agency scientists now agree that Voyager is officially outside the protective bubble known as the heliosphere that extends at least eight billion miles beyond all the planets in our solar system, and has entered a cold, dark region known as interstellar space. Voyager’s instruments will have to shut down permanently in 2025, Science reported. NASA spends $5 million per year to operate the twin spacecraft.”
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