Scientific American1d
How Many Planets Are in the Solar System?
The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...
There's more than just gravity at work in the solar system
Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's ...
Live Science on MSN13d
An interstellar visitor may have changed the course of 4 solar system planets, study suggests
An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...
as.com17d
New planet in the solar system? This is the new discovery by scientists that could change the view of our planetary neighborhood
However, this year a powerful new telescope is coming online that could prove once and for all that there really is a ninth planet in our Solar System ... entertainment. Download now for all ...