Explore the basics of our solar system, from the Sun at its center to the planets, moons, asteroids, and comets that orbit within it. This beginner-friendly guide explains key facts, unique features, ...

Astronomy often focuses on objects that are vast distances from Earth – stars that are light-years away, galaxies that are ...

The star is surrounded by a protoplanetary disk, and this disk is the first evidence of debris condensing into what will eventually become planets and other objects. Observing this early phase of ...