https://cdnph.upi.com/ph/st/th/3791784840519/2026/upi/8d1e1d67d3a96c39ba0916845dd31609/v1.5/SpaceX-readies-Starship-for-13th-flight-test.jpg" /> SpaceX pushed the 13th flight of its Starship booster and spaceship to Friday evening because of weather concerns that would interfere with testing.