Scientists suggest an interstellar visitor may have altered planetary orbits in our Solar System, reshaping trajectories of ...

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

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 ...

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 ...

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

A new study suggests that a planet-sized object may have passed through the solar system billions of years ago.

A close encounter with a mysterious interstellar object could explain the current orbits of several of Earth’s largest ...

Here’s how it works. A planet-size object that possibly once visited the solar system may have permanently changed our cosmic neighborhood by warping the orbits of the four outer planets ...