Space is also fascinating , and normally a lot more expensive than Aviation , there are some more details on this here ;
https://spacenews.com/32825proton-fa...m-upper-stage/
This was another Russian failure unfortunately , they were going through a bit of bad luck at the time, look at the
reds[
here , no pun, go to the lower half ;
[url]https://en.wikipedia.org/wiki/Briz_(rocket_stage)#Briz-K_and_Briz-KM
Another one to add to the list, this one live ( with fuel ) but safe we are told - perhaps Mr.Telsa, Elon Musk ? saw an opportunity