Ships slide in an air envelope

Friction, corrosion, and biofilms are three major problems in shipping. The research project "Air-retaining Surfaces" (ARES) – a collaboration project of Karlsruhe Institute of Technology (KIT) and the universities of Bonn ...

A guide to hunting zombie stars

Apparently not all supernovas work. And when they fail, they leave behind a half-chewed remnant, still burning from leftover heat but otherwise lifeless: a zombie star. Astronomers aren't sure how many of these should-be-dead ...

How to make greener biofuels

The climate is under pressure. And despite a number of climate agreements, we still have not bent the curve on fossil fuel emissions, which continue to rise. One of the big sinners is the fuel we use for transport.

Engineers shine light on deadly landslide

Late in the morning of March 22, 2014, a huge chunk of land cut loose and roared down a hillside in the Stillaguamish River Valley just east of Oso, Washington, about 60 miles northeast of Seattle. In a matter of minutes, ...

What if America's next big fuel source is its trash?

According to the U.S. Environmental Protection Agency, the United States produced 254 million tons of municipal solid waste in 2013. And though 87 million tons of that material from the landfill was diverted through recycling ...

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