The Department of Energy’s Fermi National Accelerator Laboratory will host the next Virtual Ask-a-Scientist on November 18, 2003 from 7:00 p.m. to 9:00 p.m. Central Time.

With the completion of its hundredth surface detector, the Pierre Auger Observatory, under construction in Argentina, this week became the largest cosmic-ray air shower array in the world. Managed by scientists at the Department of Energy’s Fermi National Accelerator Laboratory, the Pierre Auger project so far encompasses a 70-square-mile array of detectors that are tracking the most violent-and perhaps most puzzling- processes in the entire universe.

Scientists at the Department of Energy’s Fermi National Accelerator Laboratory are offering a special “Antimatter Sunday” on November 2, at 1 p.m.