Have Humans Already Conquered The Threat Of Extinction?

The Great Filter theory suggests that all advanced civilizations eventually destroy themselves before acquiring the capacity to colonize space — a notion that could explain why we've never been visited by aliens. But there may be another reason for the celestial silence. Yes, the Great Filter exists, but we've… » 9/01/14 11:00am Yesterday 11:00am

Can Congress Grant Private Companies The Right To Mine Asteroids?

U.S. companies are eyeing asteroids as the next frontier in lucrative mining ventures. But, they say, their plans are stymied by the vague status of private ownership in space. Earlier this summer, members of Congress introduced a bill to protect property rights for commercial exploitation of asteroids. Is that legal? » 8/14/14 12:00pm 8/14/14 12:00pm

Reality Check: Most Scientists Never Believed In "Global Cooling"

Climate-change deniers like to remind us how, in the 1970s, scientists all believed the Earth was heading for another ice age. So why should we believe the doomsayers who now claim the opposite? Here's why: Most scientists rejected the "global cooling" theory and, even then, were convinced the real problem was… » 8/08/14 11:00am 8/08/14 11:00am

How Whales Will Save The World – If We Let Them

For a thousand years humans systematically hunted whales for their meat, oil, and bone. Some whale populations were reduced by as much as 90%. But now that they're being protected, scientists are realizing the critical role that whales play in balancing marine ecosystems. Here are four ways they keep oceans healthy. » 8/06/14 11:15am 8/06/14 11:15am

How a Mysterious Body Part Called Fascia Is Challenging Medicine

Fascia is a web of fibrous tissue that permeates the body, but is it really the "Cinderella Tissue" that new age therapists, Rolfers, and yoga instructors suggest? The fascial system is still a medical mystery. But that could soon change, thanks to an unlikely alliance between researchers and alternative therapists. » 7/29/14 12:07pm 7/29/14 12:07pm

How Would Christianity Deal with Extraterrestrial Life?

How would the world's religions react to the discovery of extraterrestrial intelligence? There is, of course, no single answer. But for Christians who believe in the redemption of humanity through a singular event—the Incarnation of God through Christ—the question poses an especially complex dilemma. » 7/24/14 10:07am 7/24/14 10:07am

How Artificial Superintelligence Will Give Birth To Itself

There's a saying among futurists that a human-equivalent artificial intelligence will be our last invention. After that, AIs will be capable of designing virtually anything on their own — including themselves. Here's how a recursively self-improving AI could transform itself into a superintelligent machine. » 7/23/14 11:30am 7/23/14 11:30am

It's Time to Destroy Corporate Personhood

The United States is one of only a few countries in the world that recognizes corporations as persons. It's a so-called "legal fiction" that's meant to uphold the rights of groups and to smooth business processes. But it's a dangerous concept that's gone too far — and could endanger social freedoms in the future. » 7/21/14 11:00am 7/21/14 11:00am

The Most Popular Sport in North America 900 Years Ago

Beneath the freeways of East St. Louis in Illinois there lie the ruins of a city built nearly a millennium ago, around towering earthen pyramids. Today called Cahokia, it held as many as 40 thousand people, and their influence spread throughout the southeast U.S. — mostly due the popularity of a game called chunkey. » 7/14/14 11:18am 7/14/14 11:18am