http://km3net.org/home.php
KM3NeT, an European deep-sea research infrastructure, will host a neutrino telescope with a volume of several cubic kilometres at the bottom of the Mediterranean Sea that will open a new window on the Universe.
The telescope will search for neutrinos from distant astrophysical sources like gamma ray bursts, supernovae or colliding stars and will be a powerful tool in the search for dark matter in the Universe.
An array of thousands of optical sensors will detect the faint light in the deep sea from charged particles originating from collisions of the neutrinos and the Earth.