Lake Ontario nightglow

4 A.M. The moon won’t rise till 6:01 and the first pre-dawn glimmer won’t appear till 5:47. And yet, above the faint orange streaks of Canada light pollution, the horizon glows. I guess it’s nightglow (or airglow), an atmospheric phenomenon. The physics of it escape me, but I love its bright mystery. I saw it […]

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