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

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

The sun, no doubt, is the brightest object in our planetary system. Its immense light illuminates all other objects in the ...

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

Michigan State University and NASA researchers discover seven dark comets that reveal new solar system secrets.

Among the finds is an object thought to be an asteroid from the main belt, which lies between the orbits of Mars and Jupiter.

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

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

Planet Nine", dubbed, has fascinated scientists for its ability to account for "anomalous" motions of objects located faraway ...

A powerful new tool comes online this year that could help astronomers locate the mysterious planet hiding somewhere beyond ...

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 ...