星系壁纸
by X-ray: NASA/CXC; UV: NASA/JPL-Caltech; Optical: NASA/ESA/STScI/AURA; IR: NASA/JPL-Caltech/ Univ. of Ariz.
NASA Image Library · 公有领域（Public Domain）
关于这张图
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 orbiting observatories
