The viral claim accurately describes Elon Musk's emotional reaction during a 2012 interview with Scott Pelley on 60 Minutes. In that segment, Musk's voice broke and he appeared to tear up when asked about the opposition from Apollo legends Neil Armstrong and Gene Cernan. Musk explicitly stated that it was "tough" because those men were his childhood heroes. However, the narrative that these astronauts called him a "fraud" or a "disgrace" is an exaggeration not supported by the evidence.
According to reports from CBS News and NBC News at the time, Armstrong and Cernan's testimony was focused on the policy of the Obama administration to outsource low-Earth orbit transport to the private sector before those companies were fully proven. They expressed concerns about safety and the potential loss of American dominance in space, rather than launching a personal attack on Musk's character. In fact, Scott Pelley later issued an editor's note clarifying that Armstrong had actually expressed a desire to "encourage" newcomers, even if he was not yet confident in their near-term safety goals.
Furthermore, the claim that Musk did not respond to them and that the astronauts died before seeing his success is only partially true. While Armstrong passed away in 2012 before SpaceX's most iconic booster landings, several Apollo astronauts, including Fred Haise, later sent Musk a signed photo of a Falcon 9 rocket with congratulatory messages after a successful mission to the International Space Station. This indicates that the relationship between the old guard of NASA and the new commercial sector was more nuanced and less purely antagonistic than the viral post suggests.
Source quality: The evidence includes direct reporting from CBS News (the original broadcaster of the interview) and NBC News, as well as a formal editor's note from Scott Pelley clarifying the nature of the astronauts' testimony.