Read the latest articles from Popular Science (Page 451)

Why Bitcoin won’t go green any time soon
Cryptocurrency

Why Bitcoin won’t go green any time soon

Ethereum just made a big change for the better. This is why Bitcoin probably won’t follow suit.

Kale is an acquired taste, even in utero
Nutrition

Kale is an acquired taste, even in utero

When exposed to the leafy green, the fetus dramatically scowls.

Diatoms
Ocean

Philadelphia’s microscopic algae archive is a time machine for coastlands

A cache of phytoplankton held at the Academy of Natural Sciences of Drexel University is helping to reconstruct historical coastlines.

Is swimming in ice water good for you?
Fitness & Exercise

Is swimming in ice water good for you?

Sorry to throw cold water on your wellness claims.

Air Company and US Air Force's SAF test flight.
Air Force

Sustainable jet fuel is taking off with commercial airlines

JetBlue, the US Air Force, and others are investing in a greener type of fuel.

a termite's head is seen poking out from a channel in wood
Biology

Termites work through wood faster when it’s hotter out

The new findings shed light on how significant termites could be in the carbon cycle as the climate shifts.

Canada's CHIME telescope.
Deep Space

Two bizarre stars might have beamed a unique radio signal to Earth

The origin of radio bursts like this one remain a vexing astronomical mystery.

Iran cracks down on citizens’ internet access following spreading protests
Social Media

Iran cracks down on citizens’ internet access following spreading protests

Reports that both WhatsApp and Instagram are down come as Iranians protest a woman's death while in police custody.

More Americans are surviving cancer now than ever
Cancer

More Americans are surviving cancer now than ever

As smoking rates drop and early detections and treatments rise, cancer is killing less and less people each year.

Auroras glow over the Pacific Northwest.
Sun

It’s finally the fall equinox—and a great time to see shimmering auroras

In the fall, Earth is tilted in just the right way to produce more northern lights.

Apple AirPods Pro (2nd generation) earbuds in Times Square
Earbuds

Apple AirPods Pro (2nd generation) review: A well-seasoned sequel

Concentrating on output not aesthetics, Cupertino makes its premium earbuds more potent.

iRobot Roomba vacuum going underneath couch
Internet

The FTC takes a second look at Amazon-iRobot deal

The $1.7 billion purchase is sounding the government's antitrust alarm bells.

illustration of pufferfish on a fork
Food Safety

Deadly and delicious: These 6 foods can actually kill you

From pufferfish to maggot cheese to potatoes, these appealing foodstuffs are fatally dangerous.

PTSD found in 1 in 4 adults in Flint, Michigan, after water crisis
Pollution

PTSD found in 1 in 4 adults in Flint, Michigan, after water crisis

'The mental health burden of America’s largest public-works environmental disaster clearly continues for many adults in Flint.'

Restroom sign with figures in a holding position
Life Skills

What to do when you’re trying not to poop

Don’t hold your poop. But if you must, here’s how to go about it.

a clothing rank of tank tops
Space

This apparel company is using NASA spacesuit tech to relieve menopause symptoms

A London-based company is harnessing thermoregulating materials originally developed for spacesuits to help alleviate menopause symptoms.

Researchers made a robot that knows how to laugh with you
AI

Researchers made a robot that knows how to laugh with you

Here's why scientists are interested in getting an AI to LOL the right way.

There’s too much garbage on Mars
Mars

There’s too much garbage on Mars

Mars is littered with 15,694 pounds of human trash from 50 years of robotic exploration.

A guide to the Gambit family of military drones and their unique jobs
Air Force

A guide to the Gambit family of military drones and their unique jobs

This group of drone concepts, each with a specific intended mission, is built around a common core module.

An illustration of a person walking across a room, with radar bouncing off of them as a series of waves coming from a box.
Medicine

This at-home radio sensor could help monitor symptoms of patients with Parkinson’s

The router-like device can track treatments for the neurological disease, too.