An official website of the United States Government 
Here's how you know

Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( lock ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Photos

Snapshots of what’s happening in the Defense Department.

NASA mechanical engineering technician Earl Harris adjusts the wing fold of an Aerial Regional-Scale Environmental Survey of Mars airplane within NASA Langley Research Center's 12-foot low speed tunnel in Va., Jan. 25, 2006. The tunnel will test the ARES airplane for stability in various wind conditions and validate the airplane's aerodynamics.

Speed Tunnel

NASA mechanical engineering technician Earl Harris adjusts the wing fold of an Aerial Regional-Scale Environmental Survey of Mars airplane within NASA Langley Research Center's 12-foot low speed tunnel in Va., Jan. 25, 2006. The tunnel will test the ARES airplane for stability in various wind conditions and validate the airplane's aerodynamics.

Photo Gallery