An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...

Have you ever wondered why the planets in our solar system align along a flat plane? Discover the science behind this cosmic arrangement, from the formation of the protoplanetary disk to the forces ...

Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

The eight planets in our solar system orbit the sun in roughly the same plane, because they all originally formed from the same disc of debris around the sun. The line the sun traces across the ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

The research, yet to be peer-reviewed, sheds light on what could have changed the orbits of several planets in the solar ...

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.

Scientists studying samples that NASA collected from the asteroid Bennu found a wide assortment of organic molecules that ...

New insights from NASA's OSIRIS-REx mission have unveiled intriguing clues about the potential origins of life on Earth. The mission, which launched in Septembe ...

A planet-sized visitor possibly visited the solar system billions of years ago and permanently changed the cosmic neighbourhood by warping the orbital path of four outer planets of the system, a ...

They emerge from the farthest reaches of the solar system, way beyond the orbit of Neptune, then zip past the sun before disappearing again for centuries. Due to their irregular shapes and small ...