what astronauts got replaced and why?
Feb 16, 2018
By: 550909
2 Answers
Mattingly was replaced by Swigert before days of launched. Swigert was originally CMP of Apollo 13s backup crew. Mattingly was not immune through prior exposure. Thats why replaced by Swigert.
May 18, 2020
By: mahiVIMALA
from apollo 13