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USN 709931: 600-Inch Radar Telescope

USN 709931: 600-Inch Radar Telescope. Radar astronomers at the Naval Research Laboratory are using this 600 inch radar telescope to make direct measurements of the distance from the Earth to the Moon. Benjamin S. Yaplee and his associates in the radio astronomy branch of the laboratory “bounced” super-high frequency (3000 megacycles) radar signal off the moon with this installation on February 24, 1957. More precise information on relative sizes of the Earth and Moon may be derived with this scientific tool, September 3, 1957. (Official U.S. Navy photograph, now in the collection of the National Archives.
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Caption: USN 709931: 600-Inch Radar Telescope. Radar astronomers at the Naval Research Laboratory are using this 600 inch radar telescope to make direct measurements of the distance from the Earth to the Moon. Benjamin S. Yaplee and his associates in the radio astronomy branch of the laboratory “bounced” super-high frequency (3000 megacycles) radar signal off the moon with this installation on February 24, 1957. More precise information on relative sizes of the Earth and Moon may be derived with this scientific tool, September 3, 1957. (Official U.S. Navy photograph, now in the collection of the National Archives.
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  • Space Exploration
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  • Photograph
Wars & Conflicts
Navy Communities
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  • National Museum of the U.S. Navy
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