The Environment of a Massive Black Hole Studying Seven-Billion Year-Old Carbon The Abundance of Oxygen Gravity's Role in Making Stars Our Galactic Neighborhood Standard Candles X-Ray Emission from Young Stars Dark Energy is Now a Little Less Dark Circumstellar Shells of Gas Hot Jupiters and their Atmospheres Ultra-Luminous Infrared Galaxies Colliding Galaxies in the Early Universe Dusty Globules Studying a Young Solar System Hot Water