Read the latest articles from Popular Science (Page 23)

At the start and after three days: the top images show the uninjured spinal cord of a zebrafish; those in the middle show the injured spinal cord; and those at the bottom illustrate how the nerve cells grow thanks to the microrobots. (Image: ETH Zurich)
Stem Cells

Injectable nanorobots may help heal spinal injuries

The tiny devices are fused with stem cells and respond to electromagnetic signals.

The Argentine black and white tegu (Salvator merianae), also known as the Argentine giant tegu, the black and white tegu
Wildlife

Georgia is battling invasive, 4-foot-long lizards

Heads up, Argentine black and white tegu eggs hatch in June and July.

Queen Marie Antoinette of France and two of her Children Walking in The Park of Trianon, 1785.
The Weirdest Thing I Learned This Week

Marie Antoinette probably got braces to straighten her teeth

Plus neanderthals treating cavities and other weird things we learned this week.

An X-ray image of NWA 12774. Credit: Aaron Bell/CU Boulder
Solar System

Rare meteorite proves our solar system almost had an extra planet

The space rock was discovered in the sands of the Sahara desert.

a brown beetle with long antennae
Insects

A ‘mystery beetle’ is devouring North Carolina’s precious blueberries

The beetle’s 5-inch-long babies could threaten the state’s $70 million blueberry industry.

Workers prepare to burn plastic waste at a import plastic waste dump in
Pollution

A lot of ‘recycled’ plastic is being burned overseas

And causing widespread pollution linked to health problems.

Image projection of space on a young beautiful woman with short curly hair.
Medicine

Weed really does change your dreams

But the specifics are a little hazy.

a green insect with a wind that looks like a leaf stands on a stick
Insects

Big wings and sweet songs: The mating lives of Panama’s katydids

The same structures used for camouflage can also help these insects reproduce.

Anker charging accessories on sale during the early Amazon Prime Day sale
Gear

Anker just dropped its charging accessories to clearance prices before the upcoming Prime Day sale

Amazon's Prime Day sale doesn't start until June 23rd, but these Anker deals on charging blocks, USB hubs, and wireless chargers are live right now.

a black and white photo of a submarine floating on top of the water
Archaeology

Lost WWII submarine discovered off the coast of Japan

‘USS Herring’ sank in June 1944, killing all 83 sailors aboard.

a river system with orange colored water
Land

The mystery of Alaska’s orange rivers is finally solved

New research clearly links thawing permafrost to toxic shift—and offers a way to predict it.

Father's Day Gift Guide Header fire pit, cuttijng board, flashlight, sneaker
Gift Guides

2026 Father’s Day Gift Guide: 40+ presents for dads of all kinds

Skip the boring, basic gifts this year and get your father something they'll truly enjoy. The list includes everything from gaming accessories to hardcore outdoor gear.

America's First Naval Victory, 1779. boats in the water
Military

How out‑of‑work fishermen saved the American Revolution

Washington’s plan was simple: Take the sturdy, salt-stained schooners used for fishing and turn them into armed, seagoing predators.

an orangutan mother and child stare down at researchers from a tree
Endangered Species

Orangutan poop holds surprising clues about how long they breastfeed

Hint: It’s a lot longer than humans.

A bag of bagels for sale
Food Safety

Can poppy seeds actually make you fail a drug test?

Unwashed poppy seeds can even cause addiction.

A Positive Grid REACTOR AI practice amp on stage next to a sunburst Gibson Les Paul guitar bathed in purple light
Audio

Positive Grid REACTOR Intelligent Guitar Amplifier review: Perfect for practice, set for the stage

Whether you’re an advanced player able to describe the exact sound you’re after or a beginner who can only name the song whose tone they crave, REACTOR is fit to serve and near destined to impress.

a large t. rex skeleton with hills and dark clouds in the background
Dinosaurs

This T. rex could be yours for $30 million

Gus is about 12.5-feet-tall, 38-feet-long, and could fetch the highest price for any dinosaur ever sold at auction.

three birds in a nest
Birds

Bald eagle Jackie shoos away Fiona the squirrel

Sometimes, mama eagle knows best.

Ryobi tools on sale during Ryobi Days deals
Home

Get two batteries and a free power tool for just $99 during The Home Depot’s Ryobi Days sale

If you're going to buy Ryobi tools this year, right now is the time to do it. It includes yard equipment and power tools.

a man on a boat holds a large silver fish
Fish

50 million pounds of invasive fish removed from Illinois River

Carp can grow over four feet-long and gobble up resources.