In early 2005, when the construction of a neutrino beamline at Fermilab is complete, MINOS scientists will use the far detector to “catch” neutrinos created at Fermilab’s Main Injector accelerator in Batavia, Illinois. The neutrinos will travel 450 miles straight through the earth from Fermilab to Soudan – no tunnel needed. A near detector at Fermilab, which will be assembled in 2004, will record the composition of the neutrino beam as it leaves the Fermilab site. The far detector in Soudan will again analyze the neutrino beam. It will allow scientists to directly study the oscillation of muon neutrinos into electron neutrinos or tau neutrinos under laboratory conditions.