Which spacecraft first reached an interstellar destination?
Quick Answer
No spacecraft has reached another star system, but Voyager 1 first entered interstellar space in 2012. It crossed the heliopause, the boundary of the Sun’s influence.
The Full Story
No human-made spacecraft has yet reached another star system, so there is no true interstellar destination reached in that sense. However, Voyager 1 was the first spacecraft to enter interstellar space when it crossed the heliopause in 2012. That boundary marks the edge of the Sun’s heliosphere, where solar particles give way to the interstellar environment. Voyager 1 continues to travel outward and send back limited data from beyond the solar wind’s main influence.
Key Facts
YouTube Angle
Suggested video title for this topic:
"The first probe to leave the Sun’s bubble."
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