110 Years Ago, These Microscopic Photos Horrified Londoners

In 1904, the micrographs Arthur E. Smith, were exhibited at the Royal Society's Annual Conversazione in London, are showing many viewers the world under a microscope for the first time. And some reacted to these giant images of insects, plants, and human body parts with not just wonder, but revulsion as well. » 9/23/14 3:00pm Today 3:00pm

Shapeshifting Metal Brings Us One Step Closer to the T-1000

Composed of liquid metal, the robot assassin in Terminator 2 could change its shape at will. In boring real life, surface tension makes forming non-spherical liquid shapes impractical—at least until now. New research has yielded a technique that makes it possible to manipulate liquid metal into multiple configurations. » 9/23/14 1:40pm Today 1:40pm

Is There Any Plausible Reason Why Aliens Would Evolve To Look Like Us?

In science fiction movies and TV shows, intelligent aliens are usually the same basic shape as humans: two arms, two legs and a head. But why would creatures that evolved on a completely different planet look so similar to us? We asked some experts, and they told us the most likely explanations for humanoid aliens. » 9/23/14 12:49pm Today 12:49pm

You Are Alive Today Thanks to the Symbionts in Your Body

Mitochondria float around in the goo of your cells, tirelessly making the molecules that power your body. But these mitochondria used to be independent of your body; they were bacteria, floating free in the world. You are, at a fundamental level, the result of symbiosis — the interdependence of two life forms. » 9/23/14 11:27am Today 11:27am

Size Matters: Narwhals With Longer Tusks Have Bigger Testicles

Narwhals grow long tusks, if they have the balls to do it. The spear at the end of the male sea unicorn has been variously thought to be a sensory organ, a device for battling other males, or an elaborate reproductive signal. New evidence shows they're the whale version of peacock feathers. » 9/22/14 8:04pm Yesterday 8:04pm

Kirk Cameron's "Crocoduck" Came Back To Bite Him In The Ass

A few years ago, ex-teen heartthrob Kirk Cameron went on Fox News as a pitchman for young-Earth creationism. Claiming there were no transitional fossils, he ridiculed evolution saying that, if it were true, we would have duck-crocodile hybrids. Ha, ha—oh, wait, scientists found a dinosaur that's half duck, half croc. » 9/22/14 12:00pm Yesterday 12:00pm