Construction of KM3NeT has begun

Detection unit at the seabed, wound on a spherical deployment frame3 Dec 2015: Today, the first full size detection unit for KM3NeT-It has been successfully installed. The 700 m long unit – compactly wound on a spherical launching frame – arrived by ship at the installation site 100 km off-shore Sicily, Italy. There it took a big splash into the Mediterranean Sea and landed safely at the seabed at a depth of 3500 m. First it was connected to the seafloor network using an unmanned submarine controlled from the ship. Then the go ahead was given to unfurl the unit to its full length. Data from the light sensors started streaming to shore. It works!

Press release: pdf