Read the latest articles from Popular Science (Page 476)

After a pioneering patient contracted an infection earlier this year, animal-to-human transplant researchers are sharpening their tools.

As waters warm, unpredictable salmon returns leave some Alaskans with an abundance of salmon, and others with none.

The Zephyr is designed to be able to spend very long periods of time in the stratosphere.

Your chuckle's health benefits are no joke.

The forthcoming Celestiq will be very expensive, luxurious, and powerful. Here's what it says about where Cadillac has been—and where it's headed.

Shopping sustainably is hard—but thoughtful price changes can nudge people in the right direction.

AI-powered algorithms are useful, but sometimes you just need to ask a real person what they think.

According to a recent study, the crocs roamed Africa 18 to 15 million years ago. They were at least twice as large as modern dwarf crocodiles.

A recent conference raises the question: What kind of threat does this type of weapon pose to the United States?

After multiple blows to climate efforts, it is time for the president to step up.

Experts say it's important to mimic nature.

Put down the pricey telephoto lens, here's how to capture outstanding bird photos using just your smartphone and a spotting scope.

The survival of southern resident killer whales is inextricably tied to the health of Chinook salmon.

The Air Force's next-gen stealth bomber will be flying solo. Here's why.

Researchers are working to prove that coral-eating fish spread corals’ symbiotic algae in their feces. If they’re right, it could open new opportunities for helping struggling reefs cope.

What you should know about the Data Access Agreement.

Human oocytes can last for up to 50 years—and a newly discovered metabolic pathway is key to this longevity.

The inactivated version of the polio vaccine used in the US doesn't infect people.

The printer weighs 4,630 pounds (without its large metal storage box) and heats aluminum up to 1,562 degrees.

Stop putting plants on the ground and build shelves for them in midair.