SpaceX's Starship rocket roared into space from Texas on Tuesday but spun out of control about halfway through its flight without achieving some of its most important testing goals, bringing fresh engineering hurdles to CEO Elon Musk's increasingly turbulent Mars rocket program.

After back-to-back explosions, SpaceX launched its mega rocket Starship again on Tuesday evening, but fell short of the main objectives when the spacecraft tumbled out of control and broke apart. The 403-foot rocket blasted off on its ninth demo from Starbase,