multifrequency survey

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Hubble Deep Field — Coordinates: 12h 36m 49.4s, +62° 12′ 58″ … Wikipedia
telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… … Universalium
Triangulum Galaxy — Messier 33 Observation data (J2000 epoch) Pronunciation /traɪˈæŋɡjʉləm/ … Wikipedia
undersea exploration — Introduction the investigation and description of the ocean waters and the seafloor and of the Earth beneath. Primary objectives and accomplishments Included in the scope of undersea exploration are the physical and chemical… … Universalium

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