News
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Babies may thrive on wordless conversation
Although unable to say a word, 4-month-olds coordinate the timing of their vocalizations with those of adult partners in conversational ways that may have implications for social and intellectual development.
- Health & Medicine
Leukemia overpowers drug in two ways
Researchers discover why the anticancer drug Gleevec, also called STI-571, helps many patients who have chronic myelogenous leukemia but not those who have entered the crisis stage of the disease.
- Paleontology
Two new dinosaurs chiseled from fossil gap
A sleek predator and a pot-bellied giant dinosaur have emerged from North American rocks to fill in a 30-million-year gap in the dinosaur fossil record.
- Physics
Physics Bedrock Cracks, Sun Shines In
The first data from a new Canadian detector of particles called neutrinos not only resolve a 30-year-old puzzle about how the sun works, but also revise estimates of mysterious "dark" matter in the universe and strengthen a key challenge to the prevailing theory of particle physics.
- Tech
Device fingers chemical thugs at scene
A compact, new instrument exploits quantum mechanics to rapidly identify illegal drugs, pollutants, and other chemicals, on the spot.
- Tech
Robosaur roams with spring in its step
The novel dinosaur robot Troodon takes two-legged walking machines onto new terrain.
- Tech
Polymer takes dim view of explosives
By spraying surfaces with a light-emitting polymer, researchers have taken a step toward making new sensors for traces of common explosives.
- Paleontology
Sahara yields second-largest dinosaur
Excavations near an Egyptian oasis have unearthed the fossils of an animal that probably ranks as the second-most-massive dinosaur known.
- Paleontology
Fossil footprints could be monumental
Trace fossils found in a vacant lot in a small town in Utah, including the footprints of meat-eating dinosaurs, could soon be protected as part of a new U.S. national monument.
- Chemistry
Hassium holds its place at the table
Researchers have performed the first ever chemical studies on the element hassium.
- Chemistry
Chemists make hard-to-catch molecules
Chemists have devised a new way to stabilize highly reactive molecules called carbenes.
- Physics
New probe zooms in on midgets of magnetism
A new microscope for peering at magnetic materials provides the first glimpses of how such materials behave on a scale of only tens of atoms.
