星云壁纸
by NASA, Raghvendra Sahai NASA Jet Propulsion Laboratory, Lars-Ake Nyman European Southern Observatory Chile & Onsala Space Observatory, Sweden
NASA Image Library · 公有领域（Public Domain）
关于这张图
Astronomers using NASA Hubble Space Telescope stumbled upon a mysterious object that grudgingly yielded clues to its identity. The object is classified as a planetary nebula, the glowing remains of a dying, lightweight star.
