Defense Advanced Research Projects AgencyTagged Content List


Related to manmade objects placed in Earth orbit for military, commercial or scientific use

Showing 30 results for Satellites RSS
The National Aeronautics and Space Administration’s (NASA) Hubble Telescope takes the clearest images of the universe and transmits these to Earth via its antennas. From 1978 to 1980 DARPA funded the design, fabrication, delivery and installation of two antenna booms for the Hubble Space Telescope to demonstrate the advantages of metal matrix composites.
One of the world’s earliest and most well-known spy satellite programs, the now declassified Corona photo-reconnaissance program, was jointly funded by DARPA and the Central Intelligence Agency.

Initiated by ARPA in 1958 and transferred to NASA in 1959, the Television and Infrared Observations Satellites (TIROS) program became the prototype for the current global systems used for weather reporting, forecasting and research by the Defense Department, NASA and the National Oceanographic and Atmospheric Administration (NOAA).


ARPA launched the first satellite in what would become the world's first global satellite navigation system. Known as Transit, the system provided accurate, all-weather navigation to both military and commercial vessels, including most importantly the Navy’s ballistic missile submarine force.


The agreement between the United States and the Soviet Union to ban atmospheric tests of nuclear weapons was abetted by the ARPA program called VELA for developing sensors that can detect nuclear explosions in space, the upper atmosphere, and underground. The first VELA sensors to be deployed, on a pair of satellites launched three days after the 1963 treaty was signed, were designed to monitor for optical and electromagnetic signatures of nuclear explosions in the atmosphere.