Concordia Station
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Photometer
Aliivibrio fischeri
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Vaginal photoplethysmograph
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Halstead
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Maui Space Surveillance Complex
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Helios (spacecraft)
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Almucantar
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Kepler space telescope
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Rumford Prize
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Kasimir Graff
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Stratospheric Observatory for Infrared Astronomy
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Skalnaté pleso Observatory
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Zond 1
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Joel Stebbins
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Carlyle S. Beals
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Venera 10
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Venera 9
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Luminous flux
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Benjamin Baillaud
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Spectrophotometry
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Photometry (optics)
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Gel permeation chromatography
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Luminous intensity
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August Beer
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Secchi disk
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Peanut butter
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Scientific instrument
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Complete blood count
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Remote sensing
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Photometry (astronomy)
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Astronomical object
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John Joly
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Venera 3
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Huygens (spacecraft)
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Laboratory
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Light meter
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Gouda, South Holland
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Mars 4
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Luna 21
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Charles Wheatstone
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List of inventors
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Lunokhod programme
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Lunokhod 2
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Mariner 5
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Pioneer 10
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2009
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Strategic Defense Initiative
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Spectroscopy
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Satellite
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Star
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