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1. Seeing the Night Sky

   https://doi.org/10.5194/ica-proc-2-33-2019  

   Flynn, Colin G.; Rice, Matthew T. (January 2019, Proceedings of the ICA)

   Abstract. Clear, dark night skies are harder to see now than ever before, and it will only become more difficult as people continue to move into heavily light polluted and expanding urban areas. Dark Sky Parks offer a place where anyone can go to experience true dark skies, observing the stars and other celestial bodies in conditions unencumbered by artificial light and other sources of pollution. An atlas of these Dark Sky Parks will raise awareness about their existence and locations with the goal of education and outreach. Observatories may be utilized with a similar outcome; however, they need to be located in close proximity to large populations but far enough away to optimize dark skies. This research presents an approach for mapping Dark Sky Parks in the United States through the ongoing production of Seeing the Night Sky: An Atlas of Dark Sky Parks, and a related GIS location optimization model to identify potential observatory locations in a defined study area based on land availability, slope, presence of water/floodplain, proximity to populated places, light pollution, elevation, and transportation infrastructure. 

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2. Hydromedusae observed during night dives in the Gulf Stream

   https://doi.org/10.35929/RSZ.0049  

   Schuchert, Peter; Collins, Richard (September 2021, Revue suisse de Zoologie)
3. What Do Martians Do at Night?

   https://doi.org/10.52400/ECUK9571  

   Benner, Steven (November 2023, blog post)
4. NGSS engineering practices in physics instruction: Building a night light

   https://doi.org/10.1119/10.0003668  

   Stuart, Z. (January 2021, The Physics teacher)
5. Night-time neuronal activation of Cluster N in a North American songbird

   https://doi.org/10.1371/journal.pone.0300479  

   Rudolf, Jennifer; Philipello, Natalie; Fleihan, Tamara; Dickman, J David; Delmore, Kira E (March 2024, PLOS ONE)

   Mpodozis, Jorge Marin (Ed.)

   Night-migrating songbirds utilize the Earth’s magnetic field to help navigate to and from their breeding sites each year. A region of the avian forebrain called Cluster N has been shown to be activated during night migratory behavior and it has been implicated in processing geomagnetic information. Previous studies with night-migratory European songbirds have shown that neuronal activity at Cluster N is higher at night than during the day. Comparable work in North American migrants has only been performed in one species of swallows, so extension of examination for Cluster N in other migratory birds is needed. In addition, it is unclear if Cluster N activation is lateralized and the full extent of its boundaries in the forebrain have yet to be described. We used sensory-driven gene expression based on ZENK and the Swainson’s thrush, a night-migratory North American songbird, to fill these knowledge gaps. We found elevated levels of gene expression in night- vs. day-active thrushes and no evidence for lateralization in this region. We further examined the anatomical extent of neural activation in the forebrain using 3D reconstruction topology. Our findings demonstrate that Swainson’s thrushes possess an extensive bilateral night-activated Cluster N region in the forebrain similar to other European avian species, suggesting that Cluster N is highly conserved in nocturnal migrants. 

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