Neutrinos are elementary particles first detected in the 1950s, long after their theoretical prediction by theorist Wolfgang Pauli.
Neutrinos (or anti-neutrinos) are created during certain nuclear reactions, where protons are transformed into neutrons and vice versa.
Neutrinos do not interact with matter via either the electromagnetic, the strong nuclear, or gravitational forces, since they are electrically neutral leptons and their rest mass is very small.
After completion, NESTOR will consist of a large number of glass balls (the "eyes") containing photomultiplier tubes.
The detectors are connected with the terminal station through a 31-km-long deep-sea, optic fiber cable for data collection.