Astronomy and Space Technology

Infrared Astronomy

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Infrared astronomy began in the 1830s, which a few decades after the discovery of infrared light by William Herschel in 1800. Early advancement was limited, and it was not until the early 20th century that conclusive discoveries of astronomical objects other than the Sun and Moon were noticed in infrared light. After some of the discoveries which were made in the 1950s and 1960s in radio astronomy, the astronomers realized that the information available outside the visible wavelength range, and modern infrared astronomy was recognized.