NASA-UAP-D011：水星-宇宙神9号音频片段（1963年5月15日）
NASA-UAP-D011, Mercury Atlas 9 Audio Excerpt, May 15, 1963
一份1963年5月15日水星-宇宙神9号（Faith 7）任务的NASA音频片段。包含宇航员Gordon Cooper关于在轨道上观察到"发光的小球体"的通信。
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During the final and longest flight of Project Mercury, Mercury-Atlas 9 mission (MA-9) Faith 7 Pilot L. Gordon Cooper Jr. describes the brilliant blue of sunrise beneath the haze layer of the Earth’s atmosphere. As he approaches sunrise, he describes small, luminous, brilliant white particles drifting away from the spacecraft. Cooper describes observing “fireflies” after deploying beacons, which are spherical mission-related equipment with xenon strobe lights.
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原始文件托管于美国战争部服务器，链接来自 war.gov。