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

Mounted on a robotic arm attached to a 33-m long rail, a camera system is brought closer and closer to this scale-model ...

Our solar system, a cosmic ballet of planets held together by gravity and inertia, is uniquely structured compared to many ...

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

The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

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

The orbits of Jupiter, Saturn, Uranus and Neptune may have been forever changed by an enormous object that whizzed through ...