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Math

The influence of influence in Prisoner’s Dilemma

Cooperation wins out over betrayal when successful prisoners recruit followers.

Earth

The Hunt for Habitable Planets

Here and now, a new suite of small telescopes are poised to look for Earthlike planets beyond the solar system.

Physics

Physicists Hot for Ultracold

Physicists have recently coaxed molecules into ultracold states in which motion is nearly gone.

Health & Medicine

Imagination Medicine

Brain imaging reveals the substance of placebos. Expectation alone triggers the same neural circuits and chemicals as real drugs.

Space

First LHC proton collisions postponed further

The world’s most powerful atom smasher won’t reopen for business until the end of June at the earliest, rather than in April as scientists had previously estimated.

Psychology

Recovering memories that never left

New research suggests that some people who recover memories of childhood sexual abuse are prone to false recall, while others are likely to have forgotten earlier recollections of actual abuse.

Life

Fat cells also linked to prion infection

Disease-causing misfolded proteins at home in a growing list of tissues, organs.

Space

Martian stairs suggest predictable ancient climate

Tilt in Mars' axis could have created stair-stepped rock formations long ago.

Life

Spanish Inquisition couldn’t quash Moorish, Jewish genes

Finding suggests modern history, not just prehistory, can leave a strong mark on a region’s genetic signature.

Life

Funny smell may have split bee species

Among male bees that create their own perfume, a change in the sense of smell might mean a split in species.