Prof. Aprile and Xenon Dark Matter Experiment in the Times

http://www.nytimes.com/2011/04/14/science/space/14dark.html

On the morning of April 4, a dozen or so graduate students and postdoctoral fellows gathered in the offices of Elena Aprile, a physics professor at Columbia University, to get their first look at the data from an experiment on the other side of the world. In a tunnel deep under Gran Sasso, Italy, Dr. Aprile and an international team of scientists had wired a vat containing 134 pounds of liquid xenon to record the pit-pat of invisible particles, the so-called dark matter that astronomers say constitutes a quarter of the universe.