In a cosmic first, scientists watched planet-forming materials begin to solidify around a newborn star, offering a peek into ...

Astronomers have revealed new research showing that millions of new solar system objects are likely to be detected by a brand-new facility, which is expected to come online later this year.

With simple explanations and cartoon-style diagrams, he breaks down big ideas—like computers, the solar system, and the human body—into easy-to-understand language.

Learn how a possible ninth planet, the theoretical Planet X, could have acquired its wide orbit in the outer Solar System — a process that’s also applicable for other planets.

Discusses how charts created by teachers and students can enhance creativity and facilitate cooperative learning in the classroom. It highlights the benefits of using charts for clarity ...

NEW YORK (AP) — A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday.

Despite common assumptions, the disk of our Solar System is warped, and the planets travel around the Sun in slightly eccentric (or oblong) orbits. Scientists now think that a mysterious object ...

The Sun, the planets, and all else that constitutes the solar system are hurtling toward the star Lambda Herculis, some 370 light-years away.

Test your knowledge on our solar system, from the biggest and smallest planets to the behemoth mountain on Mars.

Dark matter does pervade the solar system like an invisible fog. We just lack the means to measure its effects on solar system bodies.