涡状星系 Whirlpool Galaxy
- NASA的轨道天文台合成照片用一种戏剧性的新方式展现了M51(又名涡状星系)的宏伟结构。
A composite image of M51, also known as the Whirlpool Galaxy, shows the majesty of its structure in a dramatic new way through several of NASA's orbiting observatories.
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