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1993年2月4日,俄罗斯科学家在“进步”号宇宙飞船上,成功地进行了一次人造月亮——“太空伞”的试验。这个距离地面400公里高轨道的“太空伞”,其直径为20米。它首次同月亮那样将阳光反射到地球背面的一面,从此划破了地球黑暗寂静的夜空,这一试验的成功,是人类人工照明和能源利用上的新突破。 “太空伞”就是在太空安放一个阳光反射镜。这种反射镜外形像一把折叠伞,升空时收拢起来,到了太空再张开。为了让伞的重量轻,反射阳光的效果好,伞面由一种特制的镀铝塑料薄膜作基底材料,再在它的表面喷涂一层反光作用很强的银色铝膜。
On February 4, 1993, Russian scientists successfully conducted an experiment on the artificial moon, the “Space Umbrella,” on the Progress spacecraft. This “space umbrella”, 400 kilometers above the ground, has a diameter of 20 meters. For the first time, with the moon, it reflects the sunlight to the back of the earth and from there cuts through the dark night sky of the earth. The success of this experiment is a new breakthrough in human artificial lighting and energy utilization. “Space Umbrella” is to place a sun mirror in space. This mirror is shaped like a folding umbrella, folded up when it is up and reopened in space. In order to make the umbrella light weight, the effect of reflecting the sun is good, Umbrella by a special aluminum-plastic film as the base material, and then sprayed in its surface layer of reflective silver strong aluminum film.