Read the latest articles from Popular Science (Page 655)

The tiny AirTag has ways to tell people when an unknown tracker is traveling along with them.

The vaccine will come with a warning about a minor risk of blood clots, but officials determined the shot was safe to continue.

The system includes a laser rangefinder, computer, and high-def camera.

The new malaria vaccine is 77 percent effective in young children.

Boost your sleep by making yourself a hug.

Whether due to lost insurance or fear of visiting the doctor, fewer parents got their kids their normal vaccinations.

Keep more of your files with you at all times.

The oceans are warming and the hurricanes are coming.

Eating allergens seems like it should reduce sneezes. In practice? Not so much.

The MQ-25A Stingray will take off and land from aircraft carriers and is critical to the Navy's future vision.

The bots, which can hit a top speed of 4.5 mph, will patrol a base in Florida.

The S-70 Okhotnik may be operational by 2024.

A Valkyrie just launched its own little UAV.

The US Army's latest investment in Microsoft HoloLens tech, explained.

The new mine could also be disarmed from miles away to allow friendly forces to travel safely.

The program is called the Subterranean Challenge.

We now know that it stayed aloft for at least 24 hours in a flight last year.

A new project aims to accurately model some very complex aerodynamics.

It's a complex flying machine with a long history of air-to-air combat.

A coat of paint can passively cool down buildings in increasingly hot cities.