Read the latest articles from Popular Science (Page 203)

orange bucket filled with leaves. a hose rests on the edge of the bucket with water coming out
Projects

How to build a mosquito kill bucket

Setting up a larva trap at home is an effective mosquito control method.

boxing robot
Robots

These robots learned tennis and boxing after observing people

The more they watch you, the better they get.

Concept art of lunar rover heat switch system
Space

Moon rovers are evolving to survive the harsh lunar night

The system is part refrigerator, part vent.

Illustration of an astronaut on Mars, using a remote control drone to inspect a nearby cliff.
Mars

Traveling to Mars could destroy your kidneys

New research suggests that a Mars-bound astronaut may need dialysis on the way home.

Cheetah cubs rescued from the illegal wildlife pet trade and brought to Cheetah Conservation Fund’s Rescue and Conservation Center.
Animals

On the hunt: Tracking the illegal cheetah trade

Scientists are testing new tools to spot the origin of cheetahs poached from the wild and smuggled for the pet trade.

Litter at sea
AI

Ocean trash can now be tracked from space

Supercomputers helped unlock a satellite's ability to monitor the mountains of floating plastic.

an illustration of two merging quasars in space. they are round yellow and orange disks, with a black hole in the center. white light is coming out of the center of the black hole.
Deep Space

In a first, astronomers spot merging quasars from the Cosmic Dawn

The pair dates back to 900 million years after the big bang.

an illustration of three long-necked and marine reptiles swimming with four paddle shaped limbs in an ancient sea
Wildlife

This giant polar reptile once stalked an ancient super-ocean

Fossils show that the sea dragon-like New Zealand nothosaur had sharp teeth and reached 23 feet in length.

EF ECOFLOW Portable Power Station DELTA 2 in sequential tiles.
Gear

Get EF Ecoflow’s DELTA 2 portable power station for its lowest price ever at Amazon

It's currently over 40% off, but not for long.

Sad child in stairwell using phone
Health

Like cigarettes and alcohol, Surgeon General says social media needs warning labels

The country’s top public health official says Facebook and TikTok ‘prey on developing brains.’

cows crowded indoors at a farm
Science

Can we prevent a bird flu pandemic in humans?

Here’s how experts say we should be mitigating the risk of H5N1 human outbreaks.

Katie Tyson, 18, first runner up for the Miss Snake Charmer pageant poses for a portrait in a snake pit during the 2021 Rattlesnake Roundup at the Nolan County Coliseum in Sweetwater, Texas on March 13, 2021. - The town of Sweetwater holds the largest rattlesnake roundup in the world, launched in 1958 with the sole purpose of getting rid of rattlesnakes, killing an average of 5,000 pounds of snake each year. (Photo by PAUL RATJE / AFP) (Photo by PAUL RATJE/AFP via Getty Images)
Wildlife

Despite criticism, the last of the rattlesnake roundups hang on

Public outrage has caused many rattlesnake roundups—killing contests held in the name of public safety—to go out of business or convert to no-kill wildlife festivals. But in Texas and Oklahoma, these annual events continue, with thousands of snakes being slaughtered.

coffee can camera obscura
Projects

How to make a coffee can camera—in 1961 and today

Since Popular Science published the project, photography has come a long way (for better or for worse).

Intercropped tomato (left) compared to monocropped tomatoes (right). Both were planted on the same day, but here we can see that the intercropped tomato plant is larger, bears more fruit, and the tomatoes ripened earlier than its monocropped counterpart.
Mars

Why a new method of growing food on Mars matters more on Earth

Turns out growing crops on the Red Planet is a lot like growing food on a climate-ravaged Earth.

Hammerhead shark
Sharks

A scientific mission to save the sharks

Despite increasing protection measures, these fish are among the world’s most endangered animals. New tests to detect species being traded, as well as population studies, aim to help save them.

a hand holding iphone with apps open
Tech Hacks

How to hide apps on your iPhone

Keep particular apps away from prying eyes.

Pegasus Shooting Star Vodka promo art next to meteorite
Deep Space

The $200 meteorite-infused vodka is refreshingly tasty

Would you try Pegasus Distillerie’s Shooting Star Vodka?

an ipad propped up on a table displaying a photo of a black and white cat
Projects

Turn your old iPad into a digital picture frame

Display your favorite photos without buying a new device.

exoskeleton
AI

AI-enabled virtual training could make robotic exoskeletons more common

Simulations can cut down on time-consuming testing typically performed by humans.

An array of Puroair air purifiers on a plain background
Gear

Save up to $70 on PuroAir HEPA Air Purifers at Amazon right now

Right now, PuroAir air purifiers are as cheap as $139 during this Amazon summer sale.