"Physics Experiments at Soudan<quoted text>Ok, what is dark matter then?
Uhm...what are they actually monitoring if not black holes?
Oh wise one, tell us all!
Physics experiments at Soudan focus on three major topics: the stability of matter (nucleon decay), the nature and interaction patterns of the cosmic rays and particles called neutrinos, whose properties are a sensitive test of the mechanisms of the fundamental interactions. Scientists working at Soudan have collected data on all three of these questions for several years. These studies will likely continue for at least a few more years. In addition, a large collaboration of scientists has proposed a major new initiative to measure neutrino mass, which would send a beam of neutrinos 730 km through the earth from Fermilab, near Chicago, to the laboratory at Soudan. A large new detector would be added to the current instrumentation at the Soudan Laboratory, if this plan is approved.
Experimenters working on different physics questions share use of the apparatus and often work together, using the same data. Currently, the major instrumentation at Soudan is the Soudan 2 detector is a 1,000 ton device optimized to search for proton decay. It is located in a 690 m deep underground laboratory on the 27th level of the Soudan Mine. A 60 square meter energy detector, located on the earth's surface near the entrance to the Soudan Mine, and a nearby array of sensitive light detectors, which measure atmospheric light generated by cosmic rays, work with the underground detector. In addition, the proposed neutrino mass experiment would use a new detector called MINOS, which would be located in an new underground room adjacent to the existing laboratory."