Head's Up for Beer Lovers: Mars Tech Could Brew Better Bubbles

Reliable, cheap machines in development for future human Mars missions have another, unexpected use: improving beer bubbles here on Earth. The new carbon-dioxide-recycling tech comes courtesy of Robert Zubrin, an aerospace technology entrepreneur and president of the Mars Society. In partnership with NASA's Johnson Space Center, Zubrin's aerospace companies are building technology to help humans live off the resources of Mars.