imagine a priest approaching the wright brothers right before their first flight experiment and telling them not to do it because it's suicide...
maybe you ignored that there was muslim scientist had an experiment in flight , he died in that accident (test) .
Abbas Ibn Firnas - Wikipedia, the free encyclopedia
so it's very different between two cases ,
if so, driving car is would be forbiden in Islam (because it's maybe could be an accident while drive your car ) ?!!!!
(there is different between accident and CLEAR suicide)
I mean : When the NASA scienctists don't succeded yet to the
return alive , so it's suicide scientific mission ,
because there is no doubt that they will die .because the difficulty of the return to earth .
because one way travel it's forbiden , IF the return will be availible for sure it's will be
ALLOWED .