Updated: 29 min 6 sec ago
We all live in fear of a hot planet. These companies want to make a business of stopping that.
The Nobel Prize in physics goes to three scientists who invented blue LED lights, which paved the way for tremendously greater lighting efficiency.
The discovery of location-finding brain cells underlines how our boutique brain specializes for tasks.
A red-hued lunar eclipse will be visible across most of North America Wednesday morning.
You might be surprised at the famous advances and inventions that have been passed over since the first Nobels in 1901.
A California toddler learns to cope with the effects of a rare polio-like disease.
The primary factor in the transmission of Ebola is poverty, says author of a new book about the disease.
Thomas Kostigen's new book offers survival guidelines for storms, floods, fires, and more.
The annual Muslim pilgrimage marks holy rituals.
Solving the world's looming food crisis will require big investments in agricultural research, yet public support for that is lagging.
Threat to Suleyman Shah's tomb helps trigger Turkey's response to the jihadist group.
Orthodox Jews observe Yom Kippur, the Jewish Day of Atonement, through prayer and symbolic acts.
With the first U.S. case of Ebola, there are questions about where the disease came from, how it spreads, and whether it's mutating. Here are some answers.
Ten stray dogs sent to America to avoid extermination in Russia find homes.
See Saturn's winds spin, Sahara sands gleam, and a galaxy puzzle astronomers in this week's best space pictures.
Swaziland king faces increasing criticism for his lavish lifestyle as nation struggles.
Mired in a debilitating energy crisis, Egypt looks to wind and solar as the answer to some of its longtime woes. But will it work?
Jaguar corridors in Central and South America are helping "the sumo wrestler of the animal kingdom" survive.
Officials criticize handling of Dallas case, while a nurses group raises broader concerns.
After the People's Climate March in New York, the environmental activist talks about what's next for the climate movement.