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

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

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

Images captured by NASA's Solar Dynamics Observatory have revealed that "coronal loops" give off subtle flashes of ...

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

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 ...

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

Further simulations on flybys into the inner Solar System revealed one of our own planets might be flung out of the ballpark ...

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

Despite common assumptions, the disk of our Solar System is warped, and the planets travel around the Sun in slightly eccentric (or oblong) orbits. Scientists now think that a mysterious object ...

Saturn, the sixth planet from the Sun, is one of the most breathtaking sights in our solar system. With stunning visuals ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.