The FSW-0 recoverable satellite used wood as its heat-shield
4mon 20d ago by mander.xyz/u/partner_boat_slug in todayilearned@lemmy.ml from en.wikipedia.org
A novel feature of the spacecraft's re-entry module was the use of impregnated oak, a natural material, as the ablative material for its heat shield.
(year: 1974)
Pineapple skin is also quite wild: https://twistedsifter.com/2024/09/pineapple-skin-can-withstand-heat-over-1000-degrees-celsius/