Science tends to view the universe as a giant machine, but machines need someone to design them, build them and then a energy source to power their operation. If the universe is seen in these terms- as consisting of inanimate matter that somehow arranges itself due to fixed laws- then clearly the need for a designer, builder and power source exists.
There is, of course, another way of conceiving of the universe that does away with the need for a separate creator God and that is the idea that the universe is a living, conscious, self-regulating entity, that is self-creating and functions from its own self-generated power source.
This "creative universe" view would imply that the universe itself is intelligent and aware of its various functioning parts and able to create laws or patterns of behavior to support it's continued existence and unfolding.
This view is in opposition to the mechanical universe idea made popular in recent centuries as man became enamoured with his ability to create machines. However, this view has lost favor since the advent of quantum physics, which suggests a wholly more creative and unpredictable process going on, at least at the subatomic level.