Running is in our DNA, but training for a marathon is a careful mix of muscle, mental, and technological strength.
A state-by-state breakdown of policies that could change your community.
Wind speed isn't everything.
Nearly 10 percent of U.S. bridges are considered structurally deficient.
Is there any truth to anti-aging schemes?
It's all about their chemistry.
Stories from the coolest day jobs in the world.
The perils of working on a fragile ice shelf.
A golden age of Earth observation.
Massive space rocks hurtle past Earth with frightening regularity. Some scientists want to deflect them. Others want to drag one closer.
After staring at the sun for hundreds of millennia, humans still have burning questions about it
A good performance requires great dirt.
Here's how that steam-powered boom could happen.
Both the Atlantic and Pacific areas saw a record number and intensity of storms.
New designs and materials will make future skyscrapers sturdier, safer, and smarter.
The big and bad crises that could wipe out humanity
There's a lot of information out there and not all of it is good.
Societies forget, and this physicist wants to know why.
Embryologist Irina Polejaeva talks about the successes and challenges of cloning performance horses
How safe can a citizen expect to be in a post 9/11 city? What technology can a city use to make its citizens safe?
Reporting from the Gulf, an offshore oil rig worker finds mundanity, a complacent obsession with safety, and the doom beneath it all
Last May, a massive tornado leveled Joplin, Missouri. Was it chance, or a warning of things to come?
Research linking large earthquakes to changes in the Earth's spin remains to be tested.