All Articles

evolution

How Dinosaurs Shrank and Became Birds

June 2, 2015

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

Physics

A New Theory to Explain the Higgs Mass

May 27, 2015

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.

Biology

Scientists Map 5,000 New Ocean Viruses

May 21, 2015

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?

May 19, 2015

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.

astrophysics

The Particle That Broke a Cosmic Speed Limit

May 14, 2015

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

Biology

Animal Copies Reveal Roots of Individuality

May 12, 2015

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

evolution

A Surprise for Evolution in Giant Tree of Life

May 5, 2015

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?

April 30, 2015

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

The Quantum Fabric of Space-Time

How Quantum Pairs Stitch Space-Time

April 28, 2015

New tools may reveal how quantum information builds the structure of space.