Skip to content

The XENON1T Experiment

The XENON experiment underground. Water tank (left) and three-story service building (right). Note humans at bottom right for scale.
The XENON experiment underground. Water tank (left) and three-story service building (right). Note humans at bottom right for scale. Photo: The XENON Experiment

The search for dark matter has taken physicists deep underground with experiments like XENON1T. As its name suggests, XENON1T involves a container filled with a ton of liquid xenon, placed deep underground in order to shield the sensitive detector medium from any potential background noise. The experiment lies in wait for a dark matter candidate particle called a WIMP, or Weakly Interacting Massive Particle, to pass through and produce a telltale signal. XENON1T and experiments like it have yet to discover any hints of dark matter, but they have been able to rule out certain possibilities. XENON1T is amid a transformation into XENONnT, which will contain 8 tons of liquid xenon.