Dark Matter:On the Way to Discovery

Particle Physics: The most sensitive detector in the whole world is located deep under the Italian Massive Gran Sasso. In cosmos the known materials constitute only 5%. Planets and stars are built of these. Astronomical observations, however, suggest that in universe there must be much more of an unknown material which takes away so far the direct proof. This so called dark matter-the real ruler is the universe as it holds together the galaxies.