SpaceX tests the heat shields of its Starship at 1377°C

Elon Musk has tweeted a video of a test conducted on SpaceX's Starship space rocket's heat shields. Musk tweeted that the white-hot parts, seen in the video, reached temperatures of around 1377°C, similar to orbital entry temperatures. He added the tiles of the shields were hexagonal-shaped as that gives "no straight path for hot gas to accelerate through the gaps".