Topic
Interstellar space
2 questions tagged Interstellar space — spanning every one of the seven Ws.
whose
Whose spacecraft first reached an interstellar environment?
NASA’s Voyager 1 became the first human-made object in interstellar space in 2012. It crossed the heliopause after leaving the Sun’s bubble.
Space explorationInterstellar space
which
Which spacecraft first reached an interstellar destination?
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.
AstronomyInterstellar space