Every Satellite Got Into Space Thanks to Newton's Law of Gravitation

What goes up must come down — though not always in the way you’d expect. This is Newton’s Universal Law of Gravitation, and you can thank it for GPS, Google Earth and even the pictures beamed back from the other side of the Solar System. Here’s why. The equation neatly describes the gravitational attraction that two objects experience between each other, as a result of their masses and how far apart their centers lie. It’s this equation that predicts how hard objects fall to Earth when they’re dropped. But it wasn’t entirely Newton’s work, despite its name. More

(Source: Gizmodo - Jun 11)