News
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TechCleanup Speedup: Device improves oil-spill recovery
By adding grooves to the surface of a common oil-skimming device, researchers recovered up to three times as much oil as they do with smooth-surfaced devices.
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Health & MedicineMore Evidence of Protection: Circumcision reduces STD risk in men
Circumcised men are less likely to get sexually transmitted diseases than uncircumcised men are.
By Nathan Seppa -
TechUnstoppable Bot: Armed with self-scrutiny, a mangled robot moves on
Roboticists have made a walking machine that carries on despite serious damage.
By Peter Weiss -
AstronomyDark Fingerprints: Hubble sheds light on cosmic expansion
The mysterious cosmic push that's tearing up the universe began revving up about 5 billion years ago.