According to Astrobiology Magazine, "Many of the ingredients for life formed in outer space. The Earth formed from star dust, and later meteorites and comets delivered even more materials to our planet. But scientists are still unsure which molecules played the most important roles in life's origin." The Pinwheel Galaxy, pictured above, is being studied to further the theory that organic molecules present in outer space could have been responsible for the origin of life on Earth. Read more here.