neutrino
What will soon be the most powerful neutrino detector in the United States has recorded its first three-dimensional images of particles.
Scientists at the Department of Energy’s Fermi National Accelerator Laboratory will begin a projected five-year experiment in early February, 2005 by sending the first batches of subatomic particles called neutrinos on a path through the earth from the laboratory, about 40 miles west of Chicago, to a detector located in the historic Soudan iron mine a half-mile underground in the northeastern corner of Minnesota, about 450 miles away.