Wave energy has long been seen as a promising source of clean electricity. The ocean is always moving, and that motion ...

Gravity, the force that attracts objects toward each other, is currently framed by Albert Einstein's theory of general ...

Decades ago, Paul Erdős used randomness to illuminate the vast and weird world of networks. Now mathematicians are making his ...

Stretching protein samples in all directions pulls molecules farther apart, allowing them to be visualized using only light ...

National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...