Neptune

"We've had only a single flyby — Voyager 2 in 1989 — and these results make clear there's much more to learn."

Neptune's moon Nereid might be the only satellite surviving from the planet's original system, researchers report in a new study.

Using the James Webb Space Telescope, astronomers have captured direct images of Neptune's elusive auroras for the first time.

Researchers have shared a radical new idea for how to put a spacecraft in orbit around Neptune: Use the thin atmosphere of Triton, Neptune's largest moon, to capture it.

The outer solar system contains a striking crime scene with a big mystery: How did Neptune get a moon like Triton?

A puzzling bright smudge was captured clinging to this dark spot in Neptune’s atmosphere.

Thanks to the sun's 11-year-long cycle, Neptune might be systematically purged of its clouds.

Astronomers spotted four elusive mini-Neptune planets with the exoplanet-hunting telescope CHEOPS.