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A Private View of Quantum Reality

Quantum theorist Christopher Fuchs explains how to solve the paradoxes of quantum mechanics. His price: physics gets personal.


How Dinosaurs Shrank and Became Birds

Modern birds emerged in a snap of evolutionary time through a series of simple genetic changes.


A New Theory to Explain the Higgs Mass

Three physicists have proposed a new solution to one of the deepest mysteries in particle physics: why the Higgs boson has such a tiny mass.


Scientists Map 5,000 New Ocean Viruses

In the few decades since viruses were first found in the oceans, scientists have only been able to identify a handful of species. A new survey has uncovered nearly all the rest.

foundations of mathematics

Will Computers Redefine the Roots of Math?

The Fields medalist Vladimir Voevodsky has died at 51. This 2015 article describes his computer-aided quest to eliminate human error and rewrite the century-old rules underlying all of mathematics.


The Particle That Broke a Cosmic Speed Limit

Physicists are beginning to unravel the mysteries of ultrahigh-energy cosmic rays, particles accelerated by the most powerful forces in the universe.


Animal Copies Reveal Roots of Individuality

Genetically identical animals raised under similar conditions can make very different choices. These distinctions are helping researchers map the biological basis of individuality.


A Surprise for Evolution in Giant Tree of Life

The largest evolutionary tree ever compiled leads researchers to conclude that chance mutation — not natural selection — drives the development of new species.

The Quantum Fabric of Space-Time

Interactive: What Is Space?

Imagine the fabric of space-time peeled back layer by layer.