News

Physics

Bunches of atoms madly morph

While investigating the instability of tiny clusters of atoms, scientists observe ultrasmall salt grains switching shapes at a stupendous rate.

Astronomy

Ordinary matter: Lost and found

Astronomers believe they have finally found the whereabouts of most of the ordinary matter in the universe.

Health & Medicine

Abortion-cancer link is rejected

A workshop report concludes that abortions do not increase a woman's chance of developing breast cancer.

Animals

Vampire bats don’t learn from bad lunch

For the first time, a mammal has flunked a controlled test for developing a food aversion after getting sick just once, and that unusual creature is the common vampire bat.