The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are ...

"This is a big step in understanding the outer solar system," team leader Rosemary Pike from the Center for Astrophysics | ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

The solar system's journey through the galaxy is more complex than most imagine. While we often picture planets orbiting the ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...

The Subaru Telescope has revealed a fourth member of the sednoids, a group of small bodies with peculiar orbits around the ...

Astronomers witness first moments of planet formation as rock grains crystallize around distant star HOPS-315.

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.

Our Solar System is full of mysteries, ... Based on their orbits, some of our comets and asteroids must have originated in the Oort cloud as debris that was never incorporated into a planet.

A primordial black hole in the solar system (illustrated) could make its presence known by altering the orbits of planets. Benjamin V. Lehmann, with use of SpaceEngine@Cosmographic Software LLC ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – here’s how to spot the celestial show Close Advertisement ...