Last chance! A rare plane parade is happening on Aug. 21 and it won't happen again until 2028. Here's when and how stargazers ...

Mark your calendar so you can catch Mercury, Venus, Jupiter, Saturn, Neptune and Uranus in the sky at the same time.

On Aug. 20, 1977, NASA launched the Voyager 2 spacecraft on a mission to explore the outer planets. Despite its name, this ...

When Voyager reached Neptune, it uncovered a world of raging storms, hidden patterns, and mysteries that still puzzle ...

The James Webb Space Telescope has unveiled breathtaking images of Neptune, showcasing the planet’s elusive aurorae with unprecedented clarity. These new observations not only reveal the beauty of ...

Neptune is the fourth largest planet in the solar system, with a radius of 15,599.4 miles (24,622 kilometers) — the distance between its core and the surface.

Neptune has long been depicted as a deeper, darker blue than its fellow ice giant Uranus, but a new study shows that both are a similar shade of light greenish blue.

In terms of mass, if you add up all the satellites of Neptune, Triton composes 99.5% of the mass of everything orbiting Neptune: moons, moonlets, and rings all included.

FREEHOLD -- A Neptune police officer who failed to disclose that he had been previously fired as a cop in the New York City ...