News

Animals

Sparrows Cheat on Sleep: Migratory birds are up at night but still stay sharp

During their fall migration season, white-crowned sparrows sleep only about a third as much as they do at other times of the year without becoming slow-witted.

Health & Medicine

Leukemia Fighter: Drug could combat resistant cases

A new drug for treating chronic myeloid leukemia that is resistant to the frontline drug imatinib shows promise in mouse tests.

Physics

Feel the Force: Magnetic probe finds lone electron

Scientists have observed a single electron's magnetism.

Chemistry

Nitrogen Power: New crystal packs a lot of punch

At extremely high temperatures and pressures, nitrogen gas assumes a three-dimensional crystal structure called polymeric nitrogen, a long-sought energy-storage material.