Live from launch pad 39A (members only)

SpaceX called off a launch attempt in Texas Monday for the Super Heavy booster and Starship launch vehicle, blaming a bad valve on the first stage. The next launch attempt for the world’s largest rocket is scheduled for Thursday, depending on weather and a fix for the valve problem.

After another Starship hop test last week, SpaceX is set to build the first prototype for the next-gen rocket’s huge first stage booster. Meanwhile, testing will commence soon on the Raptor engine model needed for orbital Starship missions.

Follow the key events of the Falcon 9 rocket’s ascent to orbit with the first 10 next-generation satellites for Iridium’s voice and data relay fleet.