Read the latest articles from Popular Science (Page 498)

A silver machine containing boiling grains.
Nutrition

How have non-alcoholic beers gotten so good?

Ninety-nine percent of a beer is alcohol or water. Maintaining that one percent of flavorful compounds is the challenge.

NASA astronaut with long brown hair and brown skin exercising on an erg machine in space to improve bone density
Fitness & Exercise

After a few months in space, astronaut bones don’t look so pretty

Living in zero gravity takes a toll, even on the most conditioned bodies.

fireworks over the water
Engineering

The explosive science of fireworks, explained

Light 'em up.

Tour de France bicyclists on a French Road in 2017
Fitness & Exercise

It takes about 120,000 calories to finish the Tour de France

That's a whopping amount of Big Macs.

Banana butterfly on person's brown ponytail at butterfly house in Frankfurt, Germany
Insects

If you have a serious fear of bugs, a butterfly house might change your tune

For decades, butterfly houses have been a sort of therapy for insectophobes. But can they go any further?

Stacks of white calcite on a black background in a mineral catalog
Physics

Earth has more than 10,000 kinds of minerals. This massive new catalog describes them all.

If you consider how and where a diamond was formed, you end up with nine different kinds instead of one.

firefox browser
Internet

Firefox’s privacy crusade now targets a key form of tracking

Some sites use URL strings as a workaround when cookies are blocked. Firefox's new user privacy feature stops this.

New mother nursing newborn baby while wearing a COVID mask
COVID-19

COVID deaths in pregnant people in the US are flying under the radar

Maternal mortalities in the early months of the pandemic could have come directly from the virus or the burdens it placed on the healthcare system.

Next generation Air Force pilot helmet on a gray background
Air Force

Check out the Air Force’s breezy, flashy new helmets

After 40 years, Air Force pilots will finally get to test out some new brain buckets.

stormy weather
Technology

NOAA’s powerful new weather forecasting supercomputers are now online

These supercomputers are three times faster than NOAA’s previous systems. Here’s what the agency plans to do with them.

Astronauts still can't get a good look at fireworks, even though the explosions are bigger than ever.
International Space Station

What do fireworks look like from space?

Astronauts can glimpse pyrotechnics—but only if they get lucky.

Amazon Echo Show 10
Smart Home

The best Alexa smart home starter kit

Choose the best Alexa smart home gear to kickstart your crib’s automation.

mars-gale-crater
Mars

Organic carbon on Mars could be from old life—or volcanoes

Samples from the Curiosity rover reveal the same amount of organic carbon as some spots here on Earth.

Coffee farm in Puerto Rico covered in tarp to protect it from climate change
Agriculture

Climate-related food shortages are driving more Puerto Ricans to farming

Puerto Ricans facing the effects of hurricanes and power outages on their food supply are turning to farming.

Take a peek at Sikorsky’s scout helicopter prototype
Army

Take a peek at Sikorsky’s scout helicopter prototype

Raider X is one of two candidates in the Army's Future Attack Reconnaissance Aircraft competition. Here's how the machine is coming together right now.

laptop on desk showing chocolatey on screen
Tech Hacks

The Chocolatey solution to faster, safer Windows software installation

Meet Chocolatey and never download an installer again.

Emissions from plant and ship streaming into the air.
Fossil Fuels

The Supreme Court’s EPA ruling may spell doom for US climate goals

The EPA's ability to combat carbon emissions has been seriously hindered.

Sleep is closely tied to important health factors like our weight, blood pressure, and glucose metabolism.
Heart Disease

Take heart: A good night’s sleep can boost cardiac health

Sleep is one of eight factors the American Heart Association highlights in its updated guide.

Person with blond hair and white nail polish scratching mosquito bites that could carry viruses
Diseases

These mosquito-borne viruses have a bizarre way of making you smell sweeter to their minions

An ingredient in acne medication could counteract the mosquito-charming effect.

Black and white portrait of a man
Life Skills

Make every photo a potential profile pic by learning how to pose

You’re perfect, you’re beautiful, you look like Linda Evangelista, you’re a model.