What is the fine-grained topic of the following text: Obviously, it helps if you do have an interest in solar system astronomy or an inquisitive mind that's open to new, challenging ideas but the best thing about Universe and especially jumping right into the series well into its fourth year is that there's no mathematic academic prerequisite since it's bound to fascinate those of all ages as the type of learning enhancement tool disguised as time-wasting entertainment that will satisfy all levels of experience and knowledge. Only return the topic.
Learning about the Universe through entertainment without a mathematical prerequisite.