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

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

The enormous visitor to our solar system may have been about 8 times the mass of Jupiter, and come nearly as close to the sun ...

SCIENTISTS have discovered a new super-Earth with an ‘eccentric’ orbit that swings it in-and-out of its star’s habitable zone ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

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

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

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

In the early evening, look to the southwest and you'll see Venus (the brightest object in the sky after the Sun and Moon) and ...

Study reveals an interstellar object's impact on planetary orbits, reshaping solar system dynamics. Discover how simulations ...

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 ...