Rodent is faithful, monogamous. Or he strays. Why?

The prairie vole is one of the few monogamous (mostly) mammals. What goes on in the brain that causes the guys to stray? More »

In 10 languages, happy words beat sad ones

If you rate the most common words in 10 major languages, you’ll see people tend to use positive words — around the globe. Surprised? More »

A faint smudge — with the dark red insignia of super-old light — distinguishes the oldest galaxy ever seen. The old gal was active in More »

As elephant poaching soars, carbon dating, a mainstay of archeology, could be used to date ivory, based on heavy isotopes left over More »

As the government collects security data, science is dealing with massive amounts of data in genetics, astronomy, meteorology and More »

Life is biology is species: But how many species live on Earth? About six million arthropods (insects, spiders and crustaceans), says a More »

We love accurate weather forecasts, but the weather satellites they rely on are nearing the boneyard. Some replacements have crashed More »

Compared to regular airplanes, radio-controlled craft are safer, cheaper, and easier to use for observing wildlife. More »

Neutrinos travel through mass with scarcely a trace. A 1-billion ton detector at South Pole “sees” neutrinos from distant galaxies. More »

A crash course in “sink or swim” teaches computerized robots to adapt to changing circumstances. More »

Can pigeons learn an abstract mathematical rule? Apparently! More »

Seismic study shows crust thinning as continent divides, giving another view of our restless planet. More »

A new report on the ancient universe shows that most galaxies – even all of them – had a black hole at the center, much like modern More »

Fish contamination was rare after the oil spill in the Gulf, with levels of dangerous hydrocarbons well below “levels of concern.” More »

A federal court has thrown the field of embryonic stem cell research into confusion. Last week, research that destroys embryos could More »