This pain-free, at-home laser promises pro-level results without a single zap. I used it religiously for 12 weeks—here’s the glow-down.

A Pennsylvania family is calling for action after their son's suicide, linking it to complications from laser eye surgery and urging the FDA to investigate long-term effects.

Read Cosmo's review of the 10 best at-home laser hair removal devices of 2025, plus dermatologist-approved tips and tricks for safe and effective results.

We gathered insights from experts and recommendations from our testers to determine the eight best at-home laser hair removal devices that are safe and effective.

The ZEUS laser facility at the University of Michigan has roughly doubled the peak power of any other laser in the U.S. with its first official experiment at 2 petawatts (2 quadrillion watts).

Laser level tools are always important for housework. Some of the best novice options on the market come from DeWalt, and they're surprisingly easy to use.

Color laser printers are a smart choice for home offices and small businesses, but which should you buy? Here are our top picks for every budget.

The most powerful laser in the U.S. just fired up to full strength for its first official experiment—and it’s an absolute beast.

Researchers have engineered a laser device smaller than a penny that they say could power everything from the LiDAR systems used in self-driving vehicles to gravitational wave detection, one of ...

Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. A laser named after the most powerful god in ancient Greece is living up to its name.

ISRAEL has become the first country in the world to shoot down drones using a state-of-the-art laser system, it has been revealed. A highly-advanced model was operated to intercept Hezbollah drones… ...

The first net-positive shot, for example, required 300 megajoules to power the laser system alone. But they are continued proof that controlled nuclear fusion is more than hypothetical.