How big a difference does air resistance make when running a marathon? Nike tried to find out recently. A look at the science behind the 2-hour marathon.

Einstein's theory of relativity presented a direct challenge to the notion of ether.

The physics behind the fun: roller coasters provide so many examples of basic principles that they are a staple of physics lessons. 

British biologist Francis Crick co-published a paper on the helical structure of DNA some fifty years ago. He followed a convoluted route to this discovery.

Max Planck was a German physicist who won the Nobel Prize in Physics in 1918. 

Einstein's groundbreaking theory of general relativity has remained an essential hallmark of modern physics.

I could not bring myself to accept string theory’s claim, often presented as a scientific fact, that there are exactly 11 dimensions.

Physicists, in recent years, have been trying to find evidence of antimatter in the universe. Its existence could overturn the Big Bang theory.

Advances in quantum mechanics has proved the existence of entanglement, a principle even Einstein had a hard time swallowing.