News
- Life
Dangerous dinos came out after dark
Predatory dinosaurs probably stalked the night, scientists say.
- Space
XENON100 fails to find dark matter
A hundred days of solitude for an experiment designed to rendezvous with the universe's missing mass put new limits on the elusive material's properties.
- Health & Medicine
Body’s immune protein fights breast cancer
A new study clarifies the role of interleukin-25 in stalling malignancy, possibly clearing the way for new drug development.
- Life
Antarctic lake hides bizarre ecosystem
Bacterial colonies form cones similar to fossilized examples of Earth’s early life.
- Chemistry
Plants and predators pick same poison
Zygaena caterpillars and their herbaceous hosts independently evolved an identical recipe for cyanide.
- Life
Penguin declines may come down to krill
Lack of food appears to be hurting birds on the Antarctic Peninsula.
- Physics
Screwy symmetry revealed
Math trick that reverses spirals and other shapes that twist and turn should provide new ways to understand and design materials.
- Math
Cells take on traveling salesman problem
With neither minds nor maps- chemical-sensing immune players do well with decades-old mathematical problem, a computer simulation reveals.
- Space
Baffling blowup in distant galaxy
A high-energy blast has gone on for 11 days, puzzling astronomers as to its source.
- Space
Pioneer puzzle pinned on thermodynamics
Waste heat, not exotic physics, is slowing two 1970s-era space probes down more than would be expected, a new study claims.
- Health & Medicine
Gut microbes may foster heart disease
In breaking down a common dietary fat, helpful bacteria initiate production of an artery-hardening compound, mouse experiments suggest.
- Space
Fermilab data hint at possible new particle
For the second time in weeks, results from powerful collisions of protons and antiprotons at Fermilab’s Tevatron accelerator can’t be explained with standard model of physics.
