The story behind the discovery of the four-legged fish.

Using physics to describe social phenomena can work—if it’s the right physics.

The science of waiting in modern courtship.

The sweet, avian romance of Harold and Maude.

From ecstasy to withdrawal, the lover resembles an addict.

In a mere 60 years, we of Earth have gone from launching our first spacecraft, to exploring every planet and major moon in our solar system, to establishing an international, long-lived fleet of robotic spacecraft at the Moon and Mars. What will we do in the next 100 years? With such rapid expansion of capability, […]