星云壁纸
by NASA/JPL-Caltech/ESA, the Hubble Heritage Team STScI/AURA
NASA Image Library · 公有领域（Public Domain）
关于这张图
This Hubble telescope snapshot of MyCn18, a young planetary nebula, reveals that the object has an hourglass shape with an intricate pattern of etchings in its walls. A planetary nebula is the glowing relic of a dying, Sun-like star.
