Currently it is suspectet to end in between 4.000.000.000 and 6.000.000.000 Years
Due to the Sun going Berserk
Alternatively it might not End but become Inhabitable in some Billion Years cause we are slowly (well very very very very ...... just thing of this word for another 20 lines or so ... ) distancing ourself from the Sun and thus might one day get thrown out of Orbit :P
In the Shadow of the Black Cross. We Fullfill our Duty in your Name.
And Look forward to the Day we Return to your side Silvanos.
Watching over our Comrades as they Fullfill their Duty in your Name.