Distributed Active Archive Center
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Data Analysis Program associated with a mission. There are many variants e.g., CDAP (Cassini Data Analysis Program), DDAP (Discovery Data Analysis Program), etc.
Nonluminous matter not yet directly detected by astronomers that is hypothesized to exist to account for various observed gravitational effects.
A glass or metal container made like a vacuum bottle that is used especially for storing liquefied gases.
Department of Defense
Department of Energy
Deep Space Network
a fluid whose state is determined by conditions around it