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.
FDA wants to make this official and recently asked to know more
Science of the Union.
A state-by-state breakdown of policies that could change your community.
Microsoft unveils Sun Microsystems' vision for 2004
To reach the bottom of all five oceans, this Texas businessman commissioned “the most significant vehicle since Apollo 11.”
We're not built for this stuff.
I study the motion of the ocean through rocks.
Societies forget, and this physicist wants to know why.
Researchers also finally figured out why Georgia O'Keeffe's paintings have so many of these pimples.
Astronomy: Timothy Ferris eyes the amateur asteroid-watchers.
Newsworthy eye candy
More scientists need to recycle this noble gas.
Solving the mysteries of the universe
New tech could bring closure for the families of 500,000 missing people
Full body, nearly real-time imaging is here.
Time is subjective.
Confidence in math early on differs by gender and plays a key role in future success.
Fascinating fecal science.
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.