Buzz Aldrin on the moon during the Apollo 11 mission: the astronaut had to withdraw from giving the opening lecture at Cork due to medical reasons. Photograph:  NASA/Liaison

A former Nasa astronaut who spent more than 100 days in space and completed six space walks has been chosen to deputise for space pioneer Dr Buzz Ald(...)

Apollo 11 astronaut Dr Edwin “Buzz” Aldrin is coming to Cork to participate in a prestigious spaces studies programme. File photograph: Getty Images

He was there when Neil Armstrong uttered his immortal lines, “That’s one small step for man, one giant leap for mankind” as he stepped on to the Moon.(...)