“The Two Voyagers will Outlast Earth” –Now In the Realm of the Stars

Voyager 2

 

Researchers at the University of Iowa report that the spacecraft Voyager 2 has entered the interstellar medium (ISM), the region of space outside the bubble-shaped boundary produced by wind streaming outward from the sun. Voyager 2, thus, becomes the second human-made object to journey out of our sun’s influence, following Voyager 1’s solar exit in 2012. Both provide clues to the structure of the heliosphere–the bubble, shaped much like a wind sock, created by the sun’s wind as it extends to the boundary of the solar system.

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