Elon Musk's SpaceX postponed the 10th launch of its Starship rocket due to cloudy weather in Texas on Monday, another slight delay in its efforts to overcome development setbacks and achieve several long-sought milestones essential to the Mars rocket system's reusable design.

In space, Starship will attempt to deploy mock Starlink satellites and reignite an engine along its suborbital path around the globe. Atmospheric reentry over the Indian Ocean will test its exterior steering flaps and an array of experimental heat shield tiles as the ship blazes through intense friction and heat.