What does OAO stand for?
OAO stands for "Orbiting Astronomical Observatory"
How to abbreviate "Orbiting Astronomical Observatory"?
"Orbiting Astronomical Observatory" can be abbreviated as OAO
What is the meaning of OAO abbreviation?
The meaning of OAO abbreviation is "Orbiting Astronomical Observatory"
What does OAO mean?
OAO as abbreviation means "Orbiting Astronomical Observatory"