I've very impressed that he made it down there at the age of 86, hope he recovers enough to visit the Marianas Trench. Buzz Aldrin, second man on moon, evacuated from South Pole after falling ill | Toronto Star
In other news, this is all rather sad: Astronaut Buzz Aldrin sues over control of his estate, space artifacts | collectSPACE
Buzz is pretty feisty for an old fella, here he is punching arch numpty Bart Sibrel. Buzz was the ripe old age of 72.
I recommend his autobiography: Magnificent desolation. He is the product of his era and a complex chap. Nevertheless, made of heroic stuff IMO.