SpaceX's Falcon 9 rocket launch of 10 Tranche 0 mission satellites for the Space Force's Space Development Agency (SDA) was aborted at T-2 seconds left to go in the countdown at California's Vandenberg Space Force Base on March 30, 2023. <br /><br />The reason for the abort was not given during the broadcast.<br /><br />The next launch attempt could occur on March 31 at 10:29am EDT.