John C. McCloskey, the chief electromagnetic compatibility engineer at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, speaks to the Gretna Optimist Club on June 2. McCloskey talked with club members about the James Webb Space Telescope, the most powerful telescope launched into space. The club meets for breakfast every Thursday morning at 7 a.m. at Billy’s Cafe, 20596 Highway 370. Each week’s meeting features a different speaker or presentation. The public is welcome to attend.