News

Chemistry

FBI reveals more details of anthrax investigation

A panel of scientists involved in the anthrax investigations released new details.

Animals

I, Magpie

Some magpies recognize themselves in mirrors, indicating that a basic form of self-recognition evolved in one family of birds.

Earth

Carcinogens from car exhaust can linger

Free radicals similar to those in cigarette smoke may form when car exhaust cools off, and may persist indefinitely in the air.

Space

Tiny object points to remote solar system reservoir

Possible comet may be distant visitor from the innermost region of the Oort Cloud, the proposed comet reservoir of the outermost solar system.