Yea thats why mr michio kaku (a bazzillion times smarter than both of us put together) says making a REAL light saber you would use plasma contained in a magnetic field! YODA FACEPALM! Also titanium once ignited CANT be extinguished once it starts burning. Tungsten 2inch by 2 inch cube weighs 1 KILO Any object trying to ENTER the heliosphere from a head on trajectory at cosmic speeds gets 40-99% DESTROYED entering it. (Heliosphere is suns magnetosphere)