NASA Communications’ Jennifer Wolfinger moderates a What’s on Board science briefing at the agency’s Kennedy Space Center in Florida on March 5, 2020. During the briefing, NASA Social participants had the opportunity to hear from principal investigators for payloads launching on SpaceX’s 20th Commercial Resupply Services (CRS-20) mission. CRS-20 is scheduled to launch from Cape Canaveral Air Force Station’s Space Launch Complex 40 on March 6, 2020. The SpaceX Falcon 9 rocket and cargo Dragon spacecraft are targeting an instantaneous liftoff at 11:50 p.m. EST.