Ice caves are without a doubt some of the strangest natural wonders on Earth.
The clean energy breakthroughs that Silicon Valley billionaires are betting on
November 30, 2015, 4 p.m. by Michael d'Estries
Bill Gates, Mark Zuckerberg and other billionaires have announced a new private coalition to help fund development of nascent sustainable technologies.
What's the difference between Alzheimer's disease and dementia?
November 30, 2015, 12:58 p.m. by Jenn Savedge
The terms are often used interchangeably, but here's how they differ and what they have in common.
Dark matter 'hairs' may grow out of Earth
November 30, 2015, 10:57 a.m. by Mike Wall, SPACE.com
The 'roots' could extend as deep as 600,000 miles from the planet's surface.
'Racing Extinction' sounds the alarm on Earth's disappearing species
November 30, 2015, 8:55 a.m. by Gerri Miller
Filmmakers behind 'The Cove' turn spotlight on habitat loss and the role of humans.