Isaac Newton changed the way we understand the Universe. Revered in his own lifetime, he discovered the laws of gravity and motion and invented calculus. He helped to shape our rational world view.

Isaac Newton - isn't he the guy who discovered gravity? Great! So, what's gravity? Aaaah, gravity is the force that makes objects fall towards the ground. And, without gravity, we'd all float!

This new propulsion system could rewrite the rules of spaceflight—not to mention completely defy conventional physics.

The Feline Landing Reflex Under Scrutiny For centuries, the feline righting reflex has fascinated scientists and laypeople ...