Our solar system’s origin story spans billions of years and involves clouds of gas, cosmic collisions, and planetary ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

If the object really is Planet Nine, it would be larger than Neptune and exist 700 times further from the sun than Earth.

The solar system is our cosmic neighborhood, made up of the sun and everything that orbits it — planets, moons, asteroids, comets, and even dust and gas. The order of the planets in the solar ...

What is Planet Position in Astrology? Planet position is a diagrammatic representation of the condition and positions of the celestial bodies at any given time for any given location on Earth. Planet ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

A rare celestial event on Feb. 28 will offer skywatchers the chance to witness a "planet parade" of all seven planets in our solar system outside of Earth. It's the last time this type of ...

The alignment takes place over time as each planet in the solar system orbits the sun at its own speed and distance, continually changing their relative positions. All the planets orbit roughly ...

Saturn is the second-largest planet in the solar system. Saturn is the sixth planet from the sun and the second-largest planet in the solar system. Known for its stunning rings, Saturn is a gas ...

Q: Why do the planets all orbit the Sun in the same plane? —Randi Eldevik | Stillwater, Oklahoma Because of the way the Sun formed, explains David DeVorkin, a senior curator in the space history ...