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Acra Aerospace Inc is a Anaheim, CA-based company in the Manufacturing sector.
The U.S. Army is a branch of the United States Armed Forces responsible for land-based military operations.
Sikorsky Aircraft Corporation is a world leader in the design, manufacture and service of military and commercial helicopters, fixed-wing aircraft, spare parts and maintenance, repair and overhaul services for helicopters and fixed-wing aircraft, and civil helicopter operations.
ESA/Hubble is the official account for the Hubble Space Telescope, a space-based observatory that has revolutionized modern astronomy.
Hansen Engineering Company is a Harbor City, CA-based company in the Manufacturing sector.