(Jon of he Clue Crew delivers the clue from White Sands NASA Test Facility in New Mexico.) Used to test propellants & explosives, NASA's White Sands High Energy Blast Facility can withstand blasts of 500 pounds of trinitrotoluene, also known by this 3-letter term
[DOC] [TLE] White Sands Test Facility | NASA [PAR] Jul 28, 2016 ... White Sands Test Facility tests and analysis potentially hazardous materials, ... 
Impacts, Oxygen Systems, Propellants and Aerospace Fluids, and Propulsion 
Systems.