Read the latest articles from Popular Science (Page 20)

Solar provides more than twice the share of electricity it did five years ago.

Solid construction, smooth rowing motion, and video support are highlights of the newest version of the NordicTrack rowing machine. 

One of these mysterious sharks was spotted 2,300 feet deeper than scientists expected.

The white and blue Bavarian flag in this urban landscape used to be a very different color.

A new map explores the vast underground world supporting all life on Earth.

The process is 75 percent more energy efficient—and makes a great cup of joe.

Their biggest advocate’s final act was negotiating a deal to protect their habitat. But they still need help.

Other emerging evidence suggests therapy using MDMA or ketamine for PTSD may help those who haven’t responded to other treatments, by directly influencing brain pathways.

Short answer: Really gross.

We've got the lowdown on High-End, in pictures.

Ah, the sweet allure of nepetalactone.

Combining math concepts with sports can help boost your fractions game.

Portions of the rock date back billions of years to when the moon was molten rock.

A woman’s 2,000-year-old skeleton also shows signs of limb sharpening.

A 5.3-million-year old fossil was lurking inside this extensive whale fall.

Amazon's annual Prime Day sale doesn't start until June 23rd, but dozens of great deals across many categories are already live right now.

They're undeniably cute, but they'd also be a pretty annoying pet.

Sandy and Luna are now 9 weeks old.

The chunky aluminum die is perfect for roleplaying games and chemistry class.

Passive olfactory stimulation involves exposing the brain to a variety of smells on a continuous basis, even while sleeping.