The Holmdel Horn Antenna is a large microwave horn antenna that was used as a satellite communication antenna and radio telescope during the 1960's at Bell Telephone Laboratories in Holmdel. It was associated with the research work of 2 radio astronomers, Arno Penzias and Robert Wilson. Using this antenna in 1965, Penzias and Wilson discovered the cosmic microwave background radiation that permeates the universe; this was one of the most important discoveries in physical cosmology since Edwin Hubble demonstrated in the 1920's that the universe was expanding. It provided the evidence that confirmed the "Big Bang" theory of the creation of the universe. In 1978, Penzias and Wilson received the Nobel Prize for Physics for their discovery.
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