Yellowish airglow at Earth's geodesic boundary highlights the thin atmosphere secured by our home planet's gravity.
地线边缘微黄色的天空闪闪发亮，突出了被地球引力所俘获的稀薄大气。
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According to Peter Handel of the University of Missourithat can, in the right circumstances, create a standing wave of electromagneticenergy which makes the surrounding airglow.