The rapid, unorthodox emergence of a new finch in the Galápagos hints that speciation isn’t rare. New hybrid species may quietly appear and disappear without anyone noticing.

Updated results from a Japanese neutrino experiment continue to reveal an inconsistency in the way that matter and antimatter behave.

Triangles fit effortlessly together, as do squares. When it comes to pentagons, what gives?

How well does the Nash equilibrium concept from game theory map to the real world?

A famously difficult mathematical problem resisted solution for over 40 years. Mathematicians have finally resolved it by following an intuition that links number theory to physics.

It weighs as much as 780 million suns and helped to cast off the cosmic Dark Ages. But now that astronomers have found the earliest known black hole, they wonder: How could this giant have grown so big, so fast?

To discover our species’ deep history and to shape its future health, we should learn from the microbes that accompanied us on our evolutionary journey.

Join a fleet of robotic probes on a one-way virtual-reality trip into the abyss of a massive black hole.

An eminent mathematician reveals that his advances in the study of millennia-old mathematical questions owe to concepts derived from physics.