Just a nomenclature clarification:<br />A supernova and a nova are actually two different processes. In a supernova a star is destroyed either by the collapse of its core or if it's a white dwarf, by accreting matter from a binary companion and exceeding the 1.4 solar mass white dwarf threshhold at which point the star undergoes a violent thermonuclear explosion that destroys the entire star. In a nova, a white dwarf is again accreting matter from a binary companion however it doesn't yet exceed the 1.4 solar mass threshhold. Occassionally, however, the material building up on the surface can suffer a violent thermonuclear reaction, however the reaction is isolated to the surface of the star and does not destroy the white dwarf.<br /><br />As to your questions:<br /><font color="yellow">1. When our star has spent all its fuel it will go nova yes/ no </font><br />Most likely not. It is not massive enough to undergo a core-collapse supernova, and it has no binary companion to accrete matter from to undergo a Type Ia supernova as a white dwarf. <br /><br /><font color="yellow">2. If a star like Regal went nova, could the surrounding gasses accrete again to ignite new stars and planets.<br />(this one would probaly become a nutron star or blackhole by memory correct me if im wrong)</font><br /><br />Yes, the outer atmosphere of the star is re-injected into the surrounding interstellar medium. Only the core of the star ends up as a neutron star or black hole. In fact, the supernova process is largely responsible for enchriching the interstellar medium with many of the elements heavier than hydrogen and helium (i.e. many of the atoms on the Earth were fused in massive stars and then ejected into the interstellar medium). Supernova explosions also send shocks through the interstellar medium that may cause surrounding gas/dust clouds to collapse and form new stars.<br /><br /><font color="yellow">3 Could our Sun if went nova accrete again to get hot enough to</font> <div class="Discussion_UserSignature"> </div>