with Voyager 1 crossing the heliosphere boundary in 2012 and Voyager 2 in 2018 after its flyby of Neptune. The Voyager spacecraft are powered by Radioisotope Thermoelectric Generators that produce ...

Hints of auroras were first faintly detected in ultraviolet light during a flyby of the Voyager 2 spacecraft in 1989. Webb captured Neptune’s shimmering lights in infrared light, providing ...

Hints of auroras were first faintly detected in ultraviolet light during a flyby of the Voyager 2 spacecraft in 1989. Webb captured Neptune's shimmering lights in infrared light, providing direct ...