TechCrunch
SpaceX’s massive Starship rocket could take to the skies for the fourth time on June 5, with the primary objective of evaluating the second stage’s reusable heat shield as the vehicle tries to safely reenter the atmosphere for the first time. CEO Elon Musk said on his social media platform X that "There are many tough issues to solve with this vehicle, but the biggest remaining problem is making a reusable orbital return heat shield, which has never been done before." One of the biggest issues, Musk suggested, is the vulnerability of the system overall: “we are not resilient to loss of a single tile in most places,” he said.