Spaceflight Now reports, “Update March 11, 12:39 a.m. ET: NASA and SpaceX scrubbed the launch attempt Monday night. NASA is preparing to launch its first ride share flight in support of the Science Mission Directorate with two missions flying on the same Falcon 9 rocket. However, a last-minute issue what NASA described as “a SPHEREx ground data-flow issue” cause the mission to scrub.”
Full Story (Spaceflight Now)