Well, in this case, the success was that the astronauts retuned home safely, and the failure was that they didn’t make it to the moon. So, it was a successful failure. In the article Apollo 13 shares surprises from their ‘Successful Failure Mission by Andrew Chaikin, it states, “To mark the flight’s four decades, author Andrew Chaikin shared with collectSPACE.com to the crew’s insights of their “successful failure.” It also goes on to talk about how commander Jim Lovell agrees with the “successful failure” of Apollo 13. Jim Lovell was an astronaut on Apollo 13. He agreed that Apollo 13 was a “successful failure," and her was actually there on Apollo