News

Astronomy

Cosmic Push: X-ray study confirms universe’s dark side

Culling clues from X rays emitted by distant clusters of galaxies, astronomers report new evidence that some mysterious force overcame gravity's tug about 6 billion years ago and ever since has been pushing galaxies apart at an accelerating rate.

Earth

Big Thaw Coming: Climate change may slam Arctic

If the changes in climate predicted for this century come to pass, the people and creatures of the Arctic will face some of the largest challenges.

Health & Medicine

Cutting blood supply to kill off fat

Killing the blood vessels that sustain fat tissue causes obese mice to lose weight.