Three concepts for making commercial travel greener, cleaner, and quieter. by Andrew Rosenblum and Rose Pastore
The largest nation on Earth is flying more people more places than ever. Its effort to do so without destroying the environment could show the rest of the world a better way to travel. by James Fallows
Inside the gear that should keep Felix Baumgartner alive as he attempts the longest free fall ever. by Steven Kotler
How engineers are tackling the most difficult challenge in aviation design: the electric airplane. by Seth Fletcher
Why fighter pilots will still win in a dogfight. by C.J. Chivers
The world's greatest paper-airplane engineers go head to head. by Corinne Iozzio
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.