The barred spiral galaxy NGC 1097 has a supermassive black hole at its center (pictured). How supermassive? It's 140 million times the mass of our sun. Researchers believe black holes are key to understanding the evolution of galaxies.
Feed your need for heavenly views of the universe with our picks of the most awe-inspiring space pictures. This week, researchers discover a supermassive black hole throwing a 50-million-year long tantrum and NASA checks up on a delta in a Louisiana lake.