Read the latest articles from Popular Science (Page 1251)

Africa’s rapid growth is not affecting the continent equally. Here’s a look at five African countries that represent some of the brightest spots.

NASA already has an orbiter for 2013 and a lander for 2016; now it has another rover in the works, too.

NASA is changing all of the light bulbs on board the International Space Station to help famously insomniac astronauts sleep better.

Thermography scans show that when you lie, your nose heats up.

During a moon dust measurement experiment, a physicist accidentally figured out how to help weather forecasters.

Wake up, check phone. Go to work, look at computer. Go home, play with tablet watch TV check phone look at computer. Go to bed.

Curiosity has found some intriguing stuff in the Martian dirt, but it's not clear whether trace organic material is from Earth.

A forensic chemist at a Massachusetts crime lab was arrested for tampering with drug evidence recently. A bad egg or the product of perverse incentives?

And what really makes curly hair different than straight hair?

The idea that Viagra helps out athletes has been around for years now, but is there a scientific consensus on it?

University of Warwick researchers have developed a new material that is conductive, piezoresistant, and printable in the latest generation of consumer 3-D printers.

The computer program recognizes items, learns and remembers--and even passes some basic components of an IQ test.

A landmark study refines measurements of losses in Greenland and Antarctica and how ice melt is contributing to rising seas. Here's why that is important.

By "tagging" the ideal shot through the rifle scope before firing, shooters may never miss again.

The service will start with stores in the Netherlands and Belgium in early 2013, then move on "quickly" to other countries.

In a word, terrible. On the bright side, your odds of becoming a pro athlete are good by comparison!

By tracking the cows' diets, and thus their methane production, researchers can help slow global warming.

It's not that meanies are more physically attractive than everyone else. They're just very good at fooling us.

The 'temperature-tolerant chocolate' stays solid at temperatures that would turn conventional chocolate into a gooey mess.