One of the most persistent mysteries of the Universe is why matter has mass at all. Physicists think they know the answer; a particle called the Higgs Boson, also called the "God Particle", is thought to exist that gives all other particles mass. Around this theoretical particle they constructed the glittering edifice of late-20th century physics known rather plainly as the Standard Model.
Today the failure of the SSC project continues to cast a long shadow on the physics community. Had it been fully funded, it would have begun experiments by the late 1990s and produced results around the turn of the millennium. The capabilities it would have afforded scientists are still unmatched, even by the Large Hadron Collider at CERN in Switzerland which will not be fully operational for another few years.