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.
Denmark Builds a Wild Boar Wall
Is constructing a fence along the Denmark/Germany border really the best way to keep wild pigs away from domestic pigs?
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.
What’s Wrong with Planet Earth?
According to one critic, the BBC documentary inspired more appreciation for HD television than it did for engaged environmentalism.
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.
Exploring Lake Baikal
The world's largest, deepest freshwater lake is home to hundreds of species that don't live anywhere else on Earth. But it's threatened by climate change.
The 4 Questions to Ask before You Unplug
If you're concerned about the internet's effects on the world and on yourself, unplugging might not be the answer.
The Dramatic Waves That Sink Ships
Rogue waves are becoming larger and more dangerous. But even long-term studies have not made these waves any easier to predict or avoid.
Why Is It So Much Hotter in the City?
On a sunny day, a city can be several degrees warmer than the surrounding countryside. Could better building materials make cities absorb less heat?
Salamanders Crossing: This Way to the Vernal Pool!
They may look like random puddles, but some states are building million-dollar tunnels to direct wildlife to these seasonal refuges.