Astronautics Vocabulary

The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.

• Early Ammonia Servicer
• Earth observation
• Earth observation (EO)
• Earth Observation Application Development Program (EOADP)
• Earth observation satellite (EOS)
• Earth Observation System (EOS)
• Earth remote sensing (ERS)
• earth station
• Eastern Daylight Time (EDT)
• eccentricity
• effector
• elbow pitch
• electronics platform
• Engineering Support Centre
• Enhanced Polar Outflow Probe (ePOP)
• environmental life support system (ELSS)
• equipment bay
• escape tower
• European robotic arm (ERA)
• European Space Agency (ESA)
• expandable diameter fastener
• EXPRESS Rack Simulator (ERS)
• external tank
• extravehicular activity (EVA)
• Extravehicular Mobility Unit (EMU)
• Extra-Vehicular Radiation Monitors (EVARM)