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Space Daily

Voyager 1 crossed into interstellar space in 2012 and Voyager 2 followed in 2018, yet both encountered the edge of the heliosphere at almost the same distance from the Sun—121.6 and roughly 119 astronomical units—even though they crossed in different directions and during very different phases of the solar cycle, a similarity Johns Hopkins scientists said they could not yet explain.

Objectivity score: 58
Six years and a good fraction of the solar system apart, NASA’s two Voyager spacecraft crossed the same invisible line. Voyager 1 passed out of the Sun’s bubble and into interstellar space in 2012, at 121.6 astronomical units from the Sun. Voyager 2 followed in 2018, at roughly 119. One astronomical unit is the distance from the Earth to the Sun, so the two crossings were within about two and a ha...