Simple fix boosts truck mileage.

Simple fix boosts truck mileage.

Trucks create a lot of turbulence at the rear. Can a simple set of plates reduce this turbulence and save 10 percent on a fuel bill? More »

Time to Reconsider the Leap Second

Time to Reconsider the Leap Second

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? More »

Archaeological Salvage Work

Archaeological Salvage Work

Before some building projects, salvage archaeologists save what they can. What can you learn with a quick-and-dirty dig? Worth it? More »

Spaceship Problems: Why so Many?

Spaceship Problems: Why so Many?

Mars Polar Orbiter: Lost in space. What else goes wrong in the great blue yonder, and what could we do to prevent more problems? More »