On March 13, 1997, thousands watching for Halle-Bopp Comet saw a huge V-shaped light formation cross Arizona's sky. The silent, low-flying phenomenon made national headlines on major network... Read allOn March 13, 1997, thousands watching for Halle-Bopp Comet saw a huge V-shaped light formation cross Arizona's sky. The silent, low-flying phenomenon made national headlines on major networks and news shows.On March 13, 1997, thousands watching for Halle-Bopp Comet saw a huge V-shaped light formation cross Arizona's sky. The silent, low-flying phenomenon made national headlines on major networks and news shows.