This DNA Gun Will Tag Felons for Weeks

This startlingly orange gun isn’t something from a sci-fi film set. Instead, it’s a new firearm, from UK-based Selectamark, that fires non-lethal pellets—and marks its targets with DNA for later identification. More »

Scientists Spot Quadruple Helix DNA Working in Human Cells

Forget the humble double helix: scientists from Cambridge University have now spotted four-stranded strings of DNA working inside human cells. More »

This Is What a Virus Infecting a Cell Looks Like

This isn’t a cartoon tree or some strange piece of modern art. In fact, it’s what researchers from the University of Texas at Austin saw when they managed to observe a virus in the act of penetrating a cell. More »

You Started Life as a Girl

Gentlemen, brace yourselves: once upon a time, you were a girl. Strictly speaking, when you were just an overgrown ball of cells in the womb you were female—but fortunately a few things happened along the way to ensure you were all man by birth. More »

Wrinkly Fingers Evolved to Help You Grip Wet Objects

If you’ve ever sat in a bath staring at your fingers as they wrinkle involuntarily, you’re in good company. Now, a team of scientists has worked out why it happens. More »

How to Put a Tiny Tree in a Fish Tank and Call It Art

The Japanese art of Bonsai propagation has endured for more than a thousand years, though never quite like this. Botanical artist Makoto Azuma has combined modern technology with an ancient practice to create this impressive submerged specimen. More »

What Is a Hangover?

Yippee! Let’s poison ourselves with beverages that will make us violently ill! It was your battle cry last night, and today you’re paying the price. But what is that hangover you’re experiencing, exactly? More »

Why NASA Finding Organics on Mars Is Nothing to Get Excited About

The internet is awash with news that NASA’s Curiosity Mars rover has detected carbon compounds on Mars. Some people may have you believe that the news suggests there’s life on Mars—but don’t get too excited just yet. More »

Can Viagra Make You A Better Athlete?

The idea that Viagra helps out athletes has been around for years now, but is there a scientific consensus on it? More »

Scientists Can Now Make Stem Cells From Blood

Until now, scientists have relied on embryos or complex techniques using skin cells to create stem cells. Now, though, a team from Cambridge University has manged to create them from the blood of a patient—which could make regenerative medicine a more real possibility than ever. More »