public static boolean canPlacePlanet(Planet p, LinkedList<Sprite>sprites){
    	boolean returnVal = true;
    	if(sprites.isEmpty()){
    		returnVal = true;
    	}else{
    		for(int i = 0; i < sprites.size(); i++){
        		if(distanceBetween(p, sprites.get(i)) < 1000){
        			returnVal = false;
        		}
        	}
    	}
    	
    	return returnVal;
    }