News

Physics

Neutrinos seen to fly faster than light

Though few physicists expect it to withstand scrutiny, confirmation of the observation would shake physics to its core.

Earth

Pole flips tied to plate tectonics

A lopsided arrangement of continents could lead to reversals in Earth's magnetic field.

Life

Penguins may sniff out relatives

A zoo study sees hints of odor-based kin recognition in colony-dwelling birds.

Life

XMRV tie to chronic fatigue debunked

A virus that was tied to the mysterious syndrome by 2009 research appears to have been a laboratory contaminant.

Humans

Humans reached Asia in two waves

New genetic data show that some early migrants interbred with a mysterious Neandertal sister group.