Explorers' org. (4 letters)

{ Answer }

NASA

{ Related Clues }

Discovery grp.
Houston agcy.
Launch party?
Launching gp.
Launching org.
Magellan's org.
Mariner's org.
Mercury org.
Opportunity creator
Rocket org.
Rocketeer's org.
Rocketry org.
Shuttle org.
Skylab org.
Space agcy.
Space monogram
Space org.
2011 launcher of Curiosity
Agcy. since 1958
Cape Canaveral acronym
Cape Canaveral grp.
Cape Canaveral org.
Grp. behind Magellan
Initials at Cape Canaveral
James Beggs's agcy.
Launcher of the Curiosity rover
Nimbus launcher of 1964
Orbiting telescope launcher
Payload delivery org.
"The Right Stuff" org.
Space Age acronym
Space-age acronym
Space capsule insignia
Spaced-out agcy.?
Agcy. that gave Ride a ride
Ames Research Center org.
Grp. that sends things up
Houston-based Govt. agency

{ Tags }

acronym, agcy, age, agency, astronauts, canaveral, cape, creator, discovery, grp, houston, insignia, launcher, mission, nasa, org, out, rocket, shuttle, space, 1958

{ Notes }

The answer NASA is seen frequently, appearing about once every 70 puzzles.

{ Definition }

NASA as a noun:

1. (National Aeronautics and Space Administration, NASA) = an independent agency of the United States government responsible for aviation and spaceflight