Experts are not sure why Neptune's auroras can be seen around the planet's "mid-latitudes," and not the north and south poles

Webb has filled in many gaps left by Voyager 2, the only spacecraft to visit the planet. In 2022, the telescope captured Neptune's ghostly rings and revealed a band of clouds around a known vortex at the planet's south pole for the first time.

Unexpected, Bright Hydrogen Emission Caught Astronomers by Surprise In the early universe, space was filled with a dense fog of neutral hydrogen gas. Although the first stars and galaxies gave off powerful ultraviolet light,