ATLANTA, Georgia, March 9 -- Mercer University issued the following news: By Jennifer Fairfield-Williams Mercer University and Mercer Health Sciences Center are sponsors of the annual Atlanta Science Festival, which culminates in the Exploration Expo, to be held 10 a.m.-5 p.m. March 23 at Piedmont Park. The festival, launched in 2014, is a two-week celebration of science and technology. Taking place March 9-23, it features more than 100 interactive and educational events. The expo, a giant sc  more