The Current Buzz

Pluto downgraded

Former planet becomes “dwarf planet.” Three other planetary contenders have lost out, too. Images: The planetary losers

The solar system’s far-flung rock becomes a “dwarf planet.” Three other contenders have lost out, too. Images: The planetary losers

Former planet has become a “dwarf planet.” Three other planetary contenders will be dubbed “small solar system bodies.”

A start-up develops new plastics derived from cornstarch. Stick the fork in the ground, it’ll turn into compost. Photos: Earth-friendly plastic

U.K. company trims nitrogen-based and carbon dioxide emissions by making combustion process more efficient.

He urges stepped-up funding, but also use of microbicides and pills that can block HIV transmission.

More than $1 billion earmarked for new transmission, other hybrid technology to top that offered by Toyota.

Nanowire “bar code” system designed for use in portable, quick-acting sensors that can detect pathogens.