What Are Simple Unsolved Problems in Astrophysics for Beginners?

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Simple unsolved problems in astrophysics that intrigue beginners include the shape and origin of the Universe, as well as the role of knot theory in explaining these concepts. Many seek accessible topics that connect to foundational physics, particularly Newtonian mechanics and electricity and magnetism. The discussion highlights a need for clear, engaging subjects that do not require advanced knowledge. Knot theory's application to cosmology is noted as a potential area of interest. Overall, the conversation emphasizes the desire for straightforward yet captivating astrophysical questions for those new to the field.
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so what are some simple unsolved problems in astrophysics, that are interesting. could someone just list some topics out? I've been researching on the interwebz, but can't seem to find a topic that is interesting/simple.
also are there any such topics related to Newtonian mechanics/electricity and magnetism?
I don't have a really advanced background in physics, as I am only taking an introductory college course.
thanks!
 
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bump. specifically, I'm interested in the shape and origin of the Universe.
how can knot theory explain the shape of the Universe? specific info would be helpful. thanks!
 

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