The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

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

The power of the Dark Side arrives in Destiny 2, and we’re not talking about Stasis or Strand. The game is releasing a ...

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

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

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

Titan is the only moon in our solar system with a significant atmosphere. Now we have a very good idea of how this dense ...

Two new studies show a briny, carbon-rich environment on the parent body of the Bennu asteroid was suitable for assembling ...