.NASA's T-38 jets fly in buildup above the Space Launch System rocket on Launch Pad 39B at NASA's Kennedy Space Center.Plane designations and also passengers:901: Chris Condon/ Astronaut Zena Cardman.902: Astronaut Applicant Nicole Ayers/ Rocketeer Christina Koch.903: Canadian Space Organization Rocketeer Jeremy Hansen/ Astronaut Drew Morgan.904: Chief Rocketeer Reid Wiseman/ Astronaut Joe Acaba.905 (Image Chase): Rocketeer Applicant Jack Hathaway/ Josh Valcarcel.Image Credit Score: NASA/Josh Valcarcel.