These images show some of the many shapes taken by planetary nebulae. Only one is a sphere. Top: The Ring Nebula, Abell 39, and the Eskimo Nebula. Bottom: The Red Rectangle, The Spirograph Nebula, The Hourglass, Ant Nebula, and NGC 3132.
Credit: Hubble Heritage; Jim Misti; NASA/ESA/A. Fruchter/H. Van Winckel/M. Cohen/H. Bond/T. Gull
Hubble Heritage; NASA/R. Sahai/J. Trauger/WFPC2 Team; NASA/ESA/Hubble Heritage; Hubble Heritage