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 ...

But our own Solar System's disc is relatively warped, with the orbits of its planets slightly tilted and more oval than circular. What happened to it? It's possible a heavy object fell into the mix ...

Phobos and its smaller neighbouring moon, Deimos – both discovered in 1877 – are two of the most perplexing worlds in the solar system. “They’re the only objects at this stage, in the ...

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.

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

A massive interstellar object passing through our solar system during its formative years likely altered the orbits of planets into trajectories observed today, a new study says. Interactions with ...

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

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago. Its journey could have permanently altered the orbits of the outer planets.

What an amateur astronomer recently took to be a newly-discovered asteroid turned out to be a Tesla Roadster voyaging through the cosmos.

front of Jupiter's Great Red Spot. Mars is a famously red object in our solar system, but it’s not the reddest. That honor goes to Amalthea, a tiny moon orbiting around massive gas giant planet ...

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.

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