Using Lunar Module Shadows To Scale the Effects of Rocket Exhaust Plumes
Using gamma transmission to determine the shielding effectiveness of space vehicles
US Government and NASA Documents Related to Orbital Space Debris Mitigation
US experiments flown on the Soviet satellite COSMOS 936
Use of Martian resources in a Controlled Ecological Life Support System (CELSS)
Use of magnetic sails for advanced exploration missions
Use of lunar regolith as a substrate for plant growth
Use of Ketoprofenate and Xanthonate Photocages for Antiviral Release
Use of Global Navigation Satellite Systems in Space
Use of Data Mining for Root Cause Analysis of Traffic Accidents in Colombia
Use and Protection of GPS Sidelobe Signals for Enhanced Navigation Performance in High Earth Orbit
Uranus Probe Entry and Descent Mission Concept