February 06, 2009 The Environment of a Massive Black Hole Nearly all galaxies are thought to have massive black holes at their nuclei, containing millions or even billions of solar masses of material.  Read More...

January 30, 2009 Studying Seven-Billion Year-Old Carbon Carbon is the fourth most abundant element in the universe, and an essential constituent of life. Atomic carbon is also a critical component in the giant gas clouds that populate galaxies and from which new stars and planets are made.  Read More...

January 23, 2009 The Abundance of Oxygen Oxygen is the third most abundant element in the universe (after hydrogen and helium). It is therefore thought to be an important constituent of the clouds of gas and dust from which new stars and their planets develop.  Read More...