While Neptune is interesting because it is in our own solar system, astronomers are also interested in learning more about the planet to assist with exoplanet studies.

A passing star, or a stellar flyby, with the potential to pull Neptune out of its orbit by just 0.1%, could mean catastrophe for the entire solar system. But don’t worry — it won’t happen in ...

Scientists have observed that some of Neptune's Trojan asteroids are deep red, possibly revealing what asteroids may have been like in the early days of the solar system.

NASA’s James Webb telescope is offering a new look at Neptune’s aurora, leading to a new mystery involving the eighth planet from the sun.

NASA has just made a groundbreaking discovery—a new planet beyond Neptune that wasn’t there before! This mysterious find could change how we understand our solar system and the universe itself.

What is a planetary alignment? The planets in our solar system orbit the sun essentially along the same line across the sky in a plane called the ecliptic.

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.

Astronomers have discovered four exoplanets unlike any world in our solar system. The planets, larger than Earth but smaller than Neptune, were found and confirmed using NASA and European Space ...

All eight of the solar system’s “major” planets appear in this illustration, but the actual number of planetary bodies orbiting our star is far greater.

If you're trying to get a beautiful look at the planets in our solar system, you're in luck.

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun as the orbit of Mars.

NASA has published its first photos of Neptune taken with the James Webb Space Telescope. The images, Neptune system expert and NASA Interdisciplinary Scientist Heidi Hammel said, offer the cleares… ...