Read the latest articles from Popular Science (Page 1203)

For the first time since the 1970s, researchers are being allowed to study the potential medical properties of the most tightly controlled substances around. But it's not easy.

Scientists identify a specific acoustic signature that drought-stressed trees make.

Wearers can push one button for complex movements like right-clicking a mouse and picking up a pen.

What to do, and what not to do, when trying to contact someone during an event like today's Boston Marathon bombing.

How do you secure an event like a big-city marathon?

How to protect big ideas in a new legal era

It's a start.

The latest in a long line of destructive invasive species in Florida might be one of the worst.

The big news in bioengineering this week is all about a tiny pool of rat pee.

The U.S. has been pouring millions of dollars into anti-drug campaigns since the 1980s. Has it done any good?

Imagining a world without the father of evolution

What does 7 billion look like in a browser window?

A recent descendent of Homo gets a complete skeleton.

A study suggests that consistently ranking Southern states as the heaviest isn't a (completely) accurate portrayal.

"That'll be 0.17637075920 BTC, please."

The Lufengosaurus grew like a 30-foot weed.

In 2012 alone, money raised for crowdfunding projects grew 81 percent.

You will never want to fly again.

A simple illusion caused subjects to mentally process an extra hand.

Strapping breasts down won't keep them from their inevitable journey south, according to the preliminary results of a 15-year study.