Karol 'Bo' Bobko died on August 17, 2023 at the age of 85.

He was the only NASA astronaut to fly on the first launch of two space shuttle orbiters. 

His history is here: http://www.collectspace.com/news/news-081823a-nasa-astronaut-karol-bo-bobko-obituary.html?mc_cid=3850e67779&mc_eid=aebb31eb01