Astronomy, Space, Astrology, Space Exploration, Galaxy.
http://upload.wikimedia.org/wikipedia... http://www.slate.com/blogs/bad_astron... http://www.esa.int/spaceinimages/Imag... http://en.wikipedia.org/wiki/Andromed... http://en.wikipedia.org/wiki/Triangul... http://en.wikipedia.org/wiki/Hubble_S... http://www.slate.com/blogs/bad_astron...