Read the latest articles from Popular Science (Page 221)

The best keypad door locks of 2024 on a plain white background.
Smart Home

The best keypad door locks

Stop fumbling with keys and upgrade your home with a keypad door lock.

Image of sun highlighting four solar events
Sun

Rare quadruple solar flare event captured by NASA

The 'super-sympathetic flare' might affect satellites and spacecraft near Earth.

Can AI help tell the difference between a good and bad sweet potato?
AI

Can AI help tell the difference between a good and bad sweet potato?

Scientists used hyperspectral imaging to sort produce.

left image- This rectangular image shows part of the martian surface as if the viewer is looking down and across the landscape, with the irregular, mottled ground appearing in swirled tones of brown and tan. right image- A slice of the martian surface is shown here. A rounded segment of an eroded crater basin is visible to the right. The key features seen across the image are dark spots with tendrils that are eerily reminiscent of spiders. These are visible in large numbers to the left, and scattered irregularly across the rest of the image.
Mars

Gassy geysers create ‘spiders’ on Mars

ESA captures new images of the seasonal phenomenon in the 'Inca City' region of the Red Planet.

Newest luxury submersible offers ocean explorers champagne and blackjack
Technology

Newest luxury submersible offers ocean explorers champagne and blackjack

'...you feel at one with the water.'

A tile set of Ring Battery Doorbell Deal Amazon.
Smart Home

The latest battery-powered Ring doorbell is at its lowest price ever

If you've put off setting up a home security system, take the first step by snagging this Ring doorbell at Amazon.

Astronomers fight to save a major X-ray space telescope
Space Telescope

Astronomers fight to save a major X-ray space telescope

Chandra X-Ray Observatory is in trouble. Losing it could set the field back decades.

screenshot of video games on an Android and iPhone
Tech Hacks

How to use emulators to play retro video games on your phone

Just like the old days.

under the sea
Ocean

How deep does life go?

Geologist James Powell chronicles the evolution of our understanding of life in the deep-sea biosphere.

three photos: a sample of rock on a microscope slide, rocket boosters firing, a rocket from below
Space

NASA HQ picked their best photos of the year. Here are our 13 favorites.

From space rock chunks to rocket launches, NASA had a big year.

The best outdoor misting fans will help keep you cool.
Outdoor Gear

The best outdoor misting fans for staying cool

Escape your air-conditioned cave and enjoy the outdoors, even in peak heat, with these cooling devices.

Statue of Plato in Greece
Internet

A ‘bionic eye’ scan of an ancient, scorched scroll points to Plato’s long-lost gravesite

Technology continues to reveal new details written on parchment burned by the Mount Vesuvius eruption of 79 CE.

a spike-toothed salmon fossil with its mouth open
Fish

This 400-pound prehistoric salmon had tusks like a warthog

The ‘spike-toothed' fish was up to 10 feet long.

robot v roach
Robots

Why animals run faster than their robot doppelgängers… for now

The sum is greater than its parts.

These birds help humans hunt for honey—but it’s not as sweet as you might think
The Weirdest Thing I Learned This Week

These birds help humans hunt for honey—but it’s not as sweet as you might think

Plus other weird things we learned this week.

Red mini Craftsman chainsaws in a pattern on a plain background
Home

Tackle tiny trees with 30% off this mini Craftsman chainsaw at Amazon

Miniature versions of large things are in right now. This tiny chainsaw from Craftsman is just as practical as it is petite.

ACS3 solar sail concept art above Earth
Sun

NASA will unfurl a 860-square-foot solar sail from within a microwave-sized cube

The highly advanced solar sail boom could one day allow spacecraft to travel without bulky rocket fuel.

an artificial lake surrounded by buildings
Vehicles

Inside the new $2 billion campus that GM hopes will launch it into the future

Can the Technology and Design Center help make the century-old company cool again?

skin irritated
Health

Chemical pollutants can change your skin bacteria and increase your eczema risk

Certain chemicals in synthetic fabrics such as spandex, nylon, and polyester can alter the skin microbiome.

a bioluminescent coral shaped like a fan with a central hub
Ocean

Bioluminescence may have evolved 300 million years earlier than scientists previously thought

New findings illuminate its origin story.