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.

• dark energy
• dark matter
• data
• data acquisition
• David Florida Laboratory (DFL)
• debriefing
• declination
• degrees of freedom
• de-orbiting
• deployment
• depressurization
• device
• digital computer switching unit
• digital elevation model (DEM)
• Docking and Stowage Module (DSM)
• Docking Compartment
• dosimeter
• downlink
• drop tower