PARTICLE PHYSICS · DARK MATTER RESEARCH
Exploring the Invisible Universe.
Welcome to the PICO Project. Advancing the search for dark matter through innovative bubble chamber technology, deep underground at SNOLAB in Canada.
Winter 2026 Collaboration Meeting at SNOLAB
ABOUT THE COLLABORATION
Pushing the boundaries of dark matter detection.
PICO is a joint collaboration formed through the merger of the PICASSO and COUPP collaborations.
The experiment has demonstrated that moderately superheated bubble chambers can detect nuclear recoils at energy thresholds as low as 2.45 keV. Its detectors were constructed approximately 2 km underground at SNOLAB, in Sudbury, Ontario, Canada.
2 km
Underground at SNOLAB
2.45 keV
Demonstrated recoil threshold
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Detector projects featured
OUR EXPERIMENTS
Engineering the search for dark matter.
Discover the bubble chambers developed by the PICO collaboration, from earlier experiments to larger-scale detector development.
EXPERIMENT 01
PICO-2L
Explore one of the collaboration’s earlier bubble chamber detectors.
EXPERIMENT 02
PICO-60
Discover the detector and its contributions to the PICO research program.
EXPERIMENT 03
PICO-40L
A bubble chamber designed for a target of approximately 70 kg of C₃F₈.
EXPERIMENT 04
PICO-500
A scaled-up detector project targeting approximately 250 kg of active mass.
SCIENTIFIC RESEARCH
Discover the science behind PICO.
Explore our scientific publications, academic theses, and research contributions to the direct detection of dark matter.
