Astronaut John Glenn arrives for shuttle launch despite a 40 percent chance of launch delay

KSC98102601 - CAPE CANAVERAL, FLORIDA, USA: Discovery astronaut John H. Glenn Jr. gives a thumbs up on his arrival at Kennedy Space Center's Shuttle.Landing Facility aboard a T-38 jet, October 26. He and other crewmembers will be making final preparations for launch, targeted for liftoff at 2 p.m. on October 29. Air Force forecasters say there is a 40 percent chance the launch could be postponed due to bad weather from Hurricane Mitch, now in the Caribbean. Despite the forecast the launch clock began ticking at 8 a.m. EST. iw/NASA UPI