A Jupiter-like planet has been found orbiting a young sun-like star in a solar system far away in what is a potentially ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

Dr. Raluca Rufu and Dr. Robin Canup of SwRI's Solar System Science and Exploration Division in Boulder, Colorado, used advanced simulations that show surviving early-formed planets match multiple ...

CAPE CANAVERAL, Fla. — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar ...

This new dwarf planet may exist at the edge of the solar system, possibly disproving Planet Nine's existence. This is the story of that newly encountered planet.

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday.

Scientists may have found a new Tatooine-like planet outside the solar system that orbits two failed stars.

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.

Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are these planets, and how do they travel through space? Uncover the true ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.