NASA will host a prelaunch media teleconference for the agency’s SpaceX 30th commercial resupply services mission to the International Space Station. Launch is targeted for 4:55 p.m. EDT Thursday, March 21, lifting off from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. Participants: • Kristi Duplichen, deputy manager, NASA’s International Space Station Transportation Integration Office • Heidi Parris, associate program scientist, NASA’s International Space Station Program Research Office • Sarah Walker, director, SpaceX Dragon mission management • Melody Lovin, launch weather officer, Cape Canaveral Space Force Station’s 45th Weather Squadron.