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Life

Axing molecular zombies may slow aging

Killing off dormant cells slows the decline of mice genetically engineered to grow old fast.

Humans

Humans’ entry into Europe pushed earlier

Homo sapiens fossils from Italy and England point to an early arrival and a longer time living alongside Neandertals.

Physics

The sound of screech

Auditory experts decipher the blood-curdling nature of fingernails on a chalkboard.

Health & Medicine

Eye movements confirm hypnosis

A true trance can't be faked, research suggests.

Life

Nearness key in microbe DNA swaps

Close quarters, like those inside the human body, are the most important factor in determining how often bacteria pick up one another’s genes.