Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia.

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

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 ...

Dec. 19, 2024 — New studies offer a clearer picture of how the outer solar system formed and evolved based on analyses of trans-Neptunian objects (TNOs) and centaurs. The findings reveal the ...

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

If you were to perfectly follow the steps in An Idiot's Guide to Making a Solar System, you should eventually find yourself ...

Dark matter has eluded us for many decades. Even our most advanced particle colliders and sophisticated underground detectors ...

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Emily Simpson has loved space since she was a 10-year-old kid celebrating her birthday at a planetarium. Now a recent Florida ...

The James Webb Space Telescope has revolutionized astronomy in just three years. A new project celebrates its impact on the ...