I forgot what got me to this point but I watched a video that claims the 7 astronauts survived the explosion of Challenger and died when they hit the water.
I also watched another video that claims they never boarded Challenger and are still alive today. They showed convincing pictures of these people(aged 30 years). 2 are claiming to be their twins. 2 more actually have the same name and 2 more have similar names. Nothing has been found on the 7th one.
I don't know what to believe. I'm not one to jump aboard conspiracy theories.