News

Life

For ducks, penis length depends on the other guys

Male genitals grow longer with more competition from other males.

Space

Dark matter eldorado

Astronomers have discovered that a nearby galaxy has the highest density of dark matter of any galaxy known.

Physics

Behold, the antilaser

Physicists describe a device that absorbs all incoming light.

Life

Noisy bacteria

Cell-by-cell analysis finds big differences among genetically identical cells.

Psychology

Sadness response strengthens with age

Older people reacted more strongly to sad scenes than twentysomethings did in a recent study of emotional receptivity.