Long ago, a planetary object eight times the mass of Jupiter may have once visited the solar system and altered […] The post ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia.
All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...
The Sun is the largest object in the Solar System. The Sun’s huge gravitational field keeps many other objects – planets, dwarf planets, asteroids and comets – in orbit around it.