And this is a question that people wondered when they looked at our solar system, because planets closer to the Sun are rocky, and planets further away are bigger and more gaseous.
Kjo eshte nje pyetje qe i beri te mendonin njerezit kur pane ne sistemin tone diellor, sepse planetet sa me afer Diellit jane shkembor dhe planetet me larg jane me  te medhenj dhe gazor.