Read the latest articles from Popular Science (Page 1210)

Defense Distributed creates a fully functional gun, with 3-D printed plastic parts.

We can all breathe a little easier.

Your brain makes you unconsciously like caloric foods even if they're not delicious, study finds.

A new study links first-person singular pronouns to relationship problems and higher rates of depression.

A record-breaking roller coaster that mimics the thrill of stunt flying.

Look to the iris.

Following a moratorium on "dangerous" flu research, new studies reshuffle the molecular mechanisms that allow bird flu to infect humans.

A new study finds potentially harmful levels of heavy metals in commonly used lipsticks and glosses.

New criteria for choosing NSF grants is the latest salvo from our anti-science government.

Beginning in May, a plane will fly across the United States on sunlight alone. In 2015, it will circumnavigate the world.

The caveman diet, barefoot running, co-sleeping: We spend an awful lot of time trying to live like our ancestors. Here's why that logic is wrong.

The images undermine the Nigerian Army's claim that it destroyed only 30 homes; in fact, it burned 2,300.

And calm your drone-panicked nerves!

IBM cuts everyone's commute times by analyzing a massive trove of phone records.

"A Boy and His Atom" is the must-see film of the year.

Canadian biochemistry professor proposes a deep investigation.

Emerging research on hoarding classifies it as its own distinctive disorder, separate from OCD.

The International Bitterness Unit explained

Most of us live 27 degrees north of the equator, give or take.

A decade in the making, this new encryption system is so far unhackable.