爱吱声

标题: 井蛙 [打印本页]

作者: indy 时间: 2019-2-19 10:01
标题: 井蛙
Everything in this picture is a galaxy, consisting of billions of stars. In a region just 1/32,000,000th of the sky, the Hubble Space Telescope observes 5,500 identifiable galaxies.

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