Read the latest articles from Popular Science (Page 119)

dog college scent detection
Dogs

A visit to dog college

From disaster response to disease detection, these canines choose their own career paths.

A blow fly larva disguised as a termite, antennae and all.
Insects

Rare fly species wears fake termite head to infiltrate nests

‘The termites even seem to feed them.’

The winner of the Most Rats Gained award goes to Washington, D.C., with a 390 percent increase according to the city’s last decade of data, followed by San Francisco (300 percent), Toronto (186 percent), and New York City (162 percent).
Science

Oh, great: Rat populations are surging as cities heat up

Hotter weather makes it easier for rodents to feed and breed. Washington, D.C. saw a 390 percent increase in rats over the last decade.

Stanley drinkware arranged in a pattern in blue and gray
Fitness Gear

These large-capacity Stanley IceFlow water bottles are at their cheapest price ever at Amazon right now

If you're looking for a 50-ounce, or even 64-ounce steel water bottle, then this is your chance to save big money.

Macaque eats food rests from a trash in Kandy, Sri Lanka
Wildlife

Fighting monkeys cause nationwide blackout in Sri Lanka

The brawl plunged 22 million people into darkness for hours.

Girl using phone seated on the bed
Social Media

WikiTok just might help you stop doomscrolling

The new site combines the best of Wikipedia and TikTok.

The Earth's internal layers including the mantle, outer core, and inner core.
Science

Earth’s inner core is less solid than we thought

What's stirring 3,000 miles beneath the surface of the Earth?

Europa clipper illustration
NASA

How space missions make discoveries on the way to their main destinations

Maybe the real treasure was the flyby science we did along the way.

Eggs have been crucial to vaccine production for decades.
Science

US dodged a bird flu pandemic in 1957 thanks to eggs and dumb luck

With a new strain spreading fast, will Americans get lucky again?

The ring of light surrounding the centre of the galaxy NGC 6505, captured by ESA’s Euclid telescope, is a stunning example of an Einstein ring. NGC 6505 is acting as a gravitational lens, bending light from a galaxy far behind it. The almost perfect alignment of NGC 6505 and the background galaxy has bent and magnified the light from the background galaxy into a spectacular ring. This rare phenomenon was first theorised to exist by Einstein in his general theory of relativity. This wide field shows the extended stellar halo of NGC 6505 and showcases the Einstein ring, surrounded by colourful foreground stars and background galaxies.
Space Telescope

Extremely rare ‘Einstein ring’ discovered close to Earth

The Euclid space telescope’s findings support a cosmic phenomenon first predicted by Albert Einstein.

a car with "NASCAR" on hood parked inside a facility with man standing outside of car
Engineering

How 3D-printed parts changed the NASCAR Cup Series

Faster, easier, and cheaper. 

Close-up of typing
Science

Fake papers are contaminating the world’s scientific literature

They're fueling a corrupt industry and slowing legitimate lifesaving medical research.

a screenshot asking chatgpt to send a cat photo every day at 4pm
Tech Hacks

How to use tasks and reminders inside ChatGPT

The AI chatbot wants to be a proper digital assistant.

13-inch Apple MacBook Pro With Retina Display. Isolated on table.
Tech Hacks

4 clever uses for an old Mac

Don't chuck your old laptop in a drawer.

Domed city in inhospitable planet perhaps Mars
Technology

The extinction loop

Libertarian fantasies thrive on ecological collapse, profiting from the very destruction they helped to accelerate.

noses and a green stink cloud
Ask Us Anything

Can bad smells harm you? 

Soooo can I eat my noodles if a dog pooped nearby?

Birdfy bird feeder cameras in a row with a bird on them
Smart Home

Get the $229 Birdfy Smart Bird Feeder Camera for just $109 before it sells out

Get a close-up look at the local birds with this wireless, HD bird feeder camera. It even has a built-in solar panel.

The best soundbars of 2023
Speakers

The best soundbars for any room and budget

The best soundbars offer a stylish, understated, and compact upgrade to your sound system, proving a small addition can have a big impact.

The best 4K projectors in 2024 on a plain white background.
Home

The best 4K projectors for 2025, tested and reviewed

Turn a blank wall into an ultra-high definition movie theater to enjoy your movies, TV shows, and video games more than before.

a laptop, ipad, and iphone
Tech Hacks

How to turn off Apple Intelligence on all your Apple devices

AI isn't for everyone—and you don't have to use it.