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Showing 1–5 of 5 results
Advanced filters: Author: John C. Barentine Clear advanced filters

  • We report the outcome of an international optical observation campaign of a prototype constellation satellite, AST SpaceMobile’s BlueWalker 3, which features a 64.3 m2 phased-array antenna and a launch vehicle adaptor.

    • Sangeetha Nandakumar
    • Siegfried Eggl
    • Mario Soto
    ResearchOpen Access
    Nature
    Volume: 623, P: 938-941

  • This study employs a citizen science approach to identify and classify over 230,000 light sources in German city centers, suburbs and villages. The results underscore the pivotal role of citizen science in expanding knowledge of artificial light emissions and bolstering policymaking efforts to mitigate urban light pollution.

    • Team Nachtlichter
    • Achim Tegeler
    • Yiğit Öner Altıntaş
    ResearchOpen Access
    Nature Cities
    Volume: 2, P: 496-505

  • Light pollution is a growing problem affecting the night sky. This Review takes a comprehensive look at the factors contributing to elevated brightness at night, the measurement techniques and the ongoing assessment of sky quality.

    • John C. Barentine
    Reviews
    Nature Astronomy
    Volume: 6, P: 1120-1132