Wood has been in space before, see this link: https://space.stackexchange.com/questions/18856/puzzler-which-spacecrafts-incorporated-real-wood-structural-elemen

Wood has been in space before, see this link: https://space.stackexchange.com/questions/18856/puzzler-which-spacecrafts-incorporated-real-wood-structural-elements https://space.stackexchange.com/questions/18856/puzzler-whic... Apparently, balsa wood makes a good heat shield.