The finalists competing for the 2021 Collier Trophy are: The DARPA, U.S. Air Force, Raytheon Missiles & Defense, and Northrop Grumman Hypersonic Air Breathing Weapon Concept (HAWC) Program; The Dynetics and DARPA X-61A Gremlins Air Vehicle (GAV) Program; The NASA/JPL Ingenuity Mars Helicopter Team; and The SpaceLogistics and Intelsat Mission Extension Vehicle 2 (MEV-2) Team.

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