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 ...

The planet’s elusive aurorae are much colder than expected, which is how they evaded detection for so long.

NASA's James Webb Space Telescope has captured a detailed image of Neptune's auroras, making it the first observatory to do so. Though Voyager 2 was the first spacecraft to fly by Neptune ...

NASA's Voyager 2 mission, the only spacecraft to visit Neptune, was unable to get a clear picture of the planet's auroras in 1989. Credit: NASA illustration NASA’s Voyager 2 spacecraft found ...

The planet is colder now than back in 1989 when Voyager 2 visited it. “Finding aurora on Neptune is probably the funnest result I have ever had,” lead author Henrik Melin of Northumbria ...

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 ...

In the past, astronomers have seen tantalizing hints of auroral activity on Neptune, for example, in the flyby of NASA's Voyager 2 in 1989. However, imaging and confirming the auroras on Neptune ...

"I was astonished — Neptune's upper atmosphere has cooled by several hundreds of degrees [since the Voyager flyby]," Melin said in the statement. "In fact, the temperature in 2023 was just over ...