A Century After They First Appeared, Electric Boats Are Making a Comeback
In the late 1800s, electric boats were a promising new technology. They are now enjoying a revival.
A Grain of Solar-Made Sea Salt
Artisanal sea salt makers are reviving the ancient method of sustainably harvesting salt.
Why Tornadoes Are So Difficult to Predict
Scientists and weather forecasters have been trying to understand tornadoes for over 100 years, but the average advanced warning is still only 14 minutes.
The Amazing Eyes of the Archerfish
The archerfish has an unusual skill: it spits water directly at its prey, knocking the bugs out of the sky. But how?
Is Plastic Pollution Depriving Us of Oxygen?
Plastic debris is killing the ocean’s “invisible forests,” which produce ten percent of the oxygen we breathe.
The Quantum Random Number Generator
It’s real. And it will use quantum entanglement to generate true mathematical randomness. Here’s why that matters.
Lee Smolin: Science Works Because We Care to Know the Truth
Lee Smolin speaks on quantum gravity, the nature of time, the role of ethics in science, and the importance of realism.
Five Steps to Making Your Garden a Carbon Sink
If the 81 million U.S. households with yards adopt these practices, they could absorb more carbon and help combat climate change.
Seeing Black Holes
Two of the scientists on the huge team that eventually captured the world's first image of a black hole discuss the particular challenges of the task.
How to Avoid a Meteor
It isn’t likely that Earth will be hit by a large meteor, but if it were, the results would be catastrophic.