Title: Searching for Dark Matter with XENON


The XENON100 experiment searches for galactic dark matter in the form of Weakly Interacting Massive Particles (WIMPs) via their collisions with xenon nuclei in an ultra-low background, liquid xenon time-projection chamber operating in the Gran Sasso Underground Laboratory (LNGS) in Italy. The next phase, XENON1T, is based on 3 tons of liquid xenon viewed by low-radioactivity photomultiplier tubes and housed in a water Cherenkov shield at LNGS. With construction to start in spring 2013, and the first science run in 2015, the goal is to probe spin-independent WIMP-nucleon cross sections as low as 2e-11 pb for 50 GeV particles. I will present results from a 225 live days dark matter run with XENON100, show the status of XENON1T and discuss some of its challenges.