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 ...
When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
Especially since all seven of the other planets in our solar system are about to become visible at once in a great planetary ...