How various shapes of galaxies are ! Dr. Edwin Hubble must thought so. Why ? How ? The technologies in the end of the 20th century replied to his questions. Yes, we are not alone. http://www.spacetelescope.org/images/html/opo0415a.html . Original Photo Credit: NASA, ESA, and The Hubble Heritage Team (AURA/STScI)
This space art is not available for sale.
NASA & ESA