News

Health & Medicine

Ear Protection: Combo vaccine prevents some infections

A vaccine that triggers immunity against two common bacteria can prevent many ear infections in babies.

Earth

Crater in the sand

Researchers analyzing satellite images of the Sahara Desert have discovered the region's largest impact crater.

Tech

Meddling with Metal: Novel nanocontrol yields chromium rival

A new, nontoxic alloy that might reduce use of toxic chromium springs from a novel way to manipulate crystalline metal structures via precise control of their atomic composition.

Anthropology

Polynesian Latecomers: Easter Islanders took fast track to culture

New radiocarbon dates from Easter Island indicate that the isolated Polynesian island was first colonized around A.D.