News
-
LifeCommon virus may ride up nose to brain
Almost everyone is infected, but in some people a widespread herpes bug appears to reach the central nervous system by an olfactory route.
-
HumansTaking the measure of a hobbit
Study of fossil skull suggests ancient creature could have been Homo sapiens.
-
LifeBacteria binged on BP oil but didn’t grow
Researchers suspect the spilled crude didn’t provide a balanced diet.
By Janet Raloff -
-
SpaceNew hints of saltwater on Mars
Seasonal patterns consistent with briny seeps on the Red Planet, a new study concludes.
-
LifeHow exercise benefits nerve cells
Activity stimulates production of a neural insulation that moves messages faster.
-
Health & MedicineUrine test may improve prostate screening
Levels of two biomarkers might clarify whether a man with an iffy PSA score needs to get a biopsy, a study finds.
By Nathan Seppa -
Materials ScienceNow, an invisibility cloak you can see
Physicists have developed a device that can hide objects in visible wavelengths.
By Devin Powell -
LifeA cougar in Connecticut
Using DNA and trailside cameras, wildlife biologists retrace the 18-month, 2,000-mile journey of a young male cat.
By Nadia Drake -
LifeWasp has built-in Facebook
An insect species with a tricky social life has a special facility for telling one bug's mug from another.
By Susan Milius -
LifeDNA switches tied to non-Hodgkin lymphoma
Genetic defects lead to altered activity in other genes.
-
TechCracked sewers bleed fecal germs
Studies follow leaks into waterways and drinking supplies.
By Janet Raloff