a step closer to Mars
Feature Focus: It's a tall order, but within a generation technology will take humankind farther from home than we have ever gone before.
By Ahmed K. Noor, Robert Zubrin, and Douglas Stanley

virtual OR
Engineers are developing systems that enable future healers to practice surgery and other skills on model patients in simulated spaces. By Alan S. Brown

a fast track
Design and analysis programs don't speak the same language; getting around that can be costly. By Jean Thilmany

put a nozzle on it
Teeth-like tabs are turning down the volume on jet cacophony.
By Michael Abrams

no Einstein
Overshadowed by a legendary mentor, Leo Szilard switched on the Atomic Age. By Frank Wicks

input/output
Carbon. Sunk. By Jeffrey Winters

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