The universe has no end, according to Stephen Hawkings, let me explain why:

The equation for gravity according to Newton depends on the mass of the object. That is why Jupiter has more moons than us etc. Because it has more mass = more gravity. Saturn has a moon called Titan which is greater in size than mercury, and the mini planet pluto, yet it revolves around Saturn.

Mass does not size, because different objects contain different density.

If there was an end of the universe that would mean there would be a central point of gravity which would be the largest mass in the universe. That means that every universal object would be eventually heading to that point.

Although on the contrary according to Hawkings, observations show that galaxies around us are actually moveing away from us, as well as the rest of the universe. This supports the Big Bang Theory and the universe is expanding.

Of course there are alot of phylisophical theories on creationism, and also evolutionism, you just need to figure it out for yourself and get your own opinions.