This Week: Death of the mastadon
In the News: Antarctic ozone hole: 10th largest on record!
Coming Thursday: Return of the wild: Coyotes, bears and turkeys are back!
Pilot errors have dropped 40 percent over 20 years, but on-the-ground accidents have increased. Why have pilot errors declined? What work remains to increase airline safety?
Most adhesives can’t be reused. But a radical new design, based on the foot of frogs, lizards and insects, shows how engineers can learn from nature to make smarter materials.
Trucks create a lot of turbulence at the rear. Can a simple set of plates reduce this turbulence and save 10 percent on an 18-wheeler’s fuel bill?
The solar clock doesn’t quite line up with the atomic clock. We use leap seconds to make them match. Should we dump the leap second?
An international team of scientists selected the Homestake goldmine to be the world’s deepest underground lab, but the project may sink.