The Voyager 1 probe has left the solar system, becoming the first man-made object to enter interstellar space, NASA announced.
The probe has crossed the magnetic boundary separating the solar system from interstellar space, scientists say, CNN reports.
A study was released in August stating that the probe had left the solar system already, but not everyone was convinced, as previously reported. At the time, some scientists didn't believe the probe had crossed the magnetic boundary yet.
But now, according to CNN, they have said they have evidence that the 36-year-old probe has entered interstellar space.
Ed Stone, chief scientist on the Voyager mission said, "In leaving the heliosphere and setting sail on the cosmic seas between the stars, Voyager has joined other historic journeys of exploration: The first circumnavigation of the Earth, the first steps on the Moon."
"That's the kind of event this is, as we leave behind our solar system," Stone added.
According to USA Today, data shows that Voyager 1 crossed into interstellar space Aug. 25, 2012.
Boston University space physicist Merav Opher was disappointed, saying "Such a pit it left, I wanted more data" at the brink of interstellar space.
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