Centurus A is an active galaxy 11 million light years away in the constellation Centaurus. It's a complex knot of hot and cold gases and dust, tracing out a collision from time long gone past. By looking at it in multiple wavelengths, astronomers can get a better understanding of its structure.
When supernova explode, they fling gas out into space, creating beautiful, gauzy remnant for us to drool over. Supernova remnant G352 is pretty, but weird. It's collecting extra material, misplaced its neutron star, and looks dramatically different depending on the wavelength.
One day, Nick Risinger, a 28-year-old marketing director from Seattle, felt like he needed a change. So he quit his job, packed up six professional astronomical cameras, and hiked 60,000 miles through western United States and South Africa, taking 37,000 color pictures of the night sky.