It seems something extraordinarily large stirred it up. However, the disk of the Solar System is relatively warped, and the orbits of its planets are slightly tilted and elliptical. It is quite ...

There are also many in a region beyond Neptune called the Kuiper Belt. The solar system also contains small objects called comets. Comets are similar to asteroids, but are made of ice, dust and ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...

The Sun is the largest object in the Solar System. The Sun’s huge gravitational field keeps many other objects - planets, dwarf planets, asteroids and comets - in orbit around it. The Sun and ...

Material retrieved from the asteroid Bennu by NASA’s OSIRIS-REx spacecraft shows that all the basic building blocks of life ...

When 'Oumuamua traversed our solar system in 2017 it was the first confirmed Interstellar Object (ISO) to do so. Then in 2019, Comet 2l/Borisov did the same thing. These are the only two confirmed ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago.

The cosmos, full of endless wonders and mysteries, keeps throwing us celestial curveballs. In a revelation that could reshape ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

While most objects in our solar system orbit the same plane, and in the same direction, the orbit of these objects looks like this. Some of them orbit on a slight tilt. Others orbit backwards.

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar ...

“Surprisingly, many of these so-called trans-Neptunian objects move on eccentric orbits that are inclined relative to the ...