Read the latest articles from Popular Science (Page 1398)

Police sketches from eyewitness accounts are notoriously unreliable. The question is, Will "DNA sketches" be any better?

In the dark and chatty world of avatars and assumed identities, this cybercop is a virtual Sybil, trolling for creeps and thieves.

The killing of a young child led investigators to this problem: Can the single-celled life in water tell where the water is from?

Blood flies, and leaves a tale. But it takes an expert like Paulette Sutton to sort truth from fiction in spatter language.

Space-launched darts that strike like meteors

We asked a writer to notice and decode the science claims he heard on a typical day. they averaged one every 10 minutes. And they weren’t very scientific.

999 Dollars for Knowing Where to Bang

With the flood of in-car GPS navigation systems available today, you'll never have to ask for directions again.

Bogus science and health claims are rampant--and these self-styled vigilantes are after the perps.

It's a moment fraught with exquisite anticipation and dread–the moment when your car's true power is laid bare for all to see.

Last July, 9-year-old Alex Everett received his first shot of synthetic human growth hormone--an injection he will get every night for eight years. Alex is not sick--he is short. Should we be treating stature as a medical condition?

Souped-up rovers should boost extraterrestrial research.

Don't let the old-fashioned lines of this beauty fool you: Half a million buys you a boat that's tech-packed and joystick-steered.

Needles that don't hurt.

How 2.0 wants you.

Space architect Constance Adams spent seven years at NASA. Here's her prescription for fixing the place.

With the rutan-designed globalflyer, these adventurers tackle "the first great aviation challenge of the new century." Technology: cutting-edge. Risks: gigantic.

Devices that harness brain or nerve impulses to help patients see, hear, move, and communicate are already available -- though for now they remain relatively primitive.

Why a 145-pound man can outeat a former defensive tackle nicknamed "the fridge."

Or: Why Flying Makes You Feel Like a Rat in a Lab Cage