Read the latest articles from Popular Science (Page 42)

The hidden image only becomes visible when humidity levels surpass 60 percent.

Whether you need a single carry-on bag or a whole set of luggage for traveling, you can save hundreds during Samsonite's seasonal clearance.

The agency is calling for poets, songwriters, and more who are inspired by space. And the ‘moon joy’ will keep on rolling.

Earl grey is the offspring of two different species.

Turns out, 'once in a blue moon' is right now.

Two eye specialists explain what’s behind the urge to rub and what to do about it.

Let traffic cones inspire your next bathing suit purchase.

Pfendler has already faced blisters, brutal winds, and lost freshwater in the first week of her over 2,400 mile journey.

Special immune cells may be one piece of their internal compass.

Filmmaker Tyler Perry piloted the remote-controlled behemoth, which weighs 630 pounds with a 33-foot wingspan.

But don’t throw away the bug spray just yet.

But the futuristic Aérotrain never saw the light of day.

Will chemical recycling revolutionize the fashion industry, or is it just “an excuse to keep producing plastic clothes”?

NASA's MoonFall mission plans to send drones to the moon's South Pole sometime in 2028.

The endangered wild horse species was brought back from near extinction.

Chicago, Baltimore, Toronto, and other cities see the same effect at different times of year.

While Olympia recovers, another postpartum gorilla mom will care for both newborns.

Step away from the thermostat.

Even wild animals enjoy a good wheel.

The universe is vast and teeming with stars – but if intelligent life exists, it may not be able to visit Earth.