FDA wants to make this official and recently asked to know more
When David Hanson set out to build a robotic head, he saw no reason not to make it look just like a human. Then he stumbled into the Uncanny Valley.
Our editors scrounged up some truly bizarre facts.
The world's oldest lizard-like reptile, with roots dating back to the Triassic period, has been found breeding again for the first time in 200 years
These mysterious creatures exist today more or less unevolved from the forms they had hundreds of millions of years ago
Researchers find promising antibacterial agents in marijuana
Studying our natural internal bacteria could help doctors cure diseases that affect millions
Coaxing T cells to combat genital herpes at the source is good. Talking them into blocking HIV is even better.
If the biggest 350,000 web sites on the internet were real places, this is what the map would look like
Plus: zoology's most wanted.
Finally, science solves that age-old question: How can I be more popular on the Internet?
This "immune anticipation" may be fairly common, researchers say.
We need new tools to squash superbugs
It was thought that the pathogen could only be spread via close contact.
You'll catch more bugs with honey
5 strategies for beating antibiotic resistance
Microsoft unveils Sun Microsystems' vision for 2004
Astronomy: Timothy Ferris eyes the amateur asteroid-watchers.
In a wide-ranging interview with PopularScience.com, Aldrin talks about a mission to Mars, 34 years of sobriety and the future of American leadership in space.