Photography of the Earth's Cloud Satellites from an Aircraft

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Science  28 Jul 1967:
Vol. 157, Issue 3787, pp. 427-429
DOI: 10.1126/science.157.3787.427


Under astronomically favorable circumstances, photographs do not reveal excess light near the triangular libration points of the earth-moon system. We find that the visible surface brightness of anomalous dust populations, if these populations do exist, is less than 10-9 candela per square centimeter.