Read the latest articles from Popular Science (Page 836)

Field & Stream's outdoors skills expert examines the finer points of honing a knife with a stone.

Given another huge extinction event on the horizon, it's crucial that we figure out how they work sooner rather than later.

We have a vaccine that prevents cancer—but not enough people are using it.

From fast jets, to tiny jets, to home-built propeller aircraft, here’s what flew in the desert north of Reno.

Rights of Nature laws generally are designed to encourage people to rethink their relationship to the environment.

Anal sacs can tell you a lot about an animal.

Carry an entire library in your pocket.

The most fun you can have with a toy lie detector.

Faced with potential burnout from shoeing horses, Jennifer Horn taught herself artistic blacksmithing.

Start prospecting for “brown gold,” a term we made up to make cardboard boxes sound more interesting.

Memory could have something to do with it.

A recent poll found that most Americans think algorithms are unfair. But was the poll itself biased?

Also be sure to listen to the latest Techathlon podcast.

Your skeleton does a whole lot more than just hold you up.

Take jean repair to the next level: reweaving.

It exposes small streams and wetlands nationwide to pollution.

A familiar atmosphere with a few alien quirks.

Treating self harm as a condition, not a symptom could lead to better diagnoses and preventative care.

That flash drive might've been free, but if it's got malware, it's going to cost you.

It turns out bee semen is kind of horrifying.