World Topics

Jun 3, 2016

Satellites find 39 unreported sources of major pollution

Researchers in the United States and Canada have located 39 unreported sources of major pollution using a new satellite-based method, the U.S. National Aeronautics and Space Administration said. The unreported sources of toxic sulfur dioxide emissions are clusters of coal-burning power plants, smelters and ...

How dogs became man's best friend — twice over

Jun 3, 2016

How dogs became man's best friend — twice over

Ancient humans made dogs their best friend not once but twice, by domesticating two separate populations of wolves far apart in Europe and Asia. Scientists on Thursday said present-day genomes reveal a deep internal split between dogs from opposite ends of the Eurasian continent. ...

Study reveals harm to fish from tiny bit of plastic pollution

Jun 3, 2016

Study reveals harm to fish from tiny bit of plastic pollution

Scientists have demonstrated for the first time the devastating physiological and behavioral effects on fish exposed to the tiny bits of plastic pollution clogging the world’s oceans. Lab experiments with European perch larvae showed exposure to microplastic particles at levels present in seas inhibited ...

Tutankhamun dagger likely made from meteoric iron: study

Jun 3, 2016

Tutankhamun dagger likely made from meteoric iron: study

Scientific analysis of a 3,300-year-old dagger found buried with Tutankhamun “strongly supports” a theory it was made of meteoric iron, according to a new study. “Our study confirms that ancient Egyptians attributed great value to meteoritic iron for the production of precious objects,” said ...

Scientists propose project that includes making human DNA

Jun 3, 2016

Scientists propose project that includes making human DNA

Scientists proposed a long-term project Thursday that involves creating DNA blueprints for making human beings, a prospect some observers find troubling. The researchers said they have no intention of using these genomes — huge collections of genetic material — to make people. Instead, they ...