Suspended near the bottom of the Mediterranean Sea off France and Italy, 126 football-sized glass spheres are already using the ocean itself as an instrument to search for signals from dark matter, supernovae and neutron star collisions. These are the first of many such globes deployed for a project called the Cubic Kilometer Neutrino Telescope, or KM3NeT.
Image: Researchers are in the process of deploying modules for a new pair of underwater telescopes (visualized here). Credit: KM3NET
