Black Holes: Light Bending and Mind Bending

My daughter is homeschooled utilizing the Classical Conversations academic program. This year she is in Challenge I. As part of her curriculum she is required to complete a research paper, and she chose 'black holes' as her subject.

Do you have any idea what it's like to try and describe a phenomenon that may or may not exist (although astrophysicists seem pretty sure that  they're out there) and that has properties that incorporate some of the most difficult scientific theories in the field?

Let's just say I'm wishing she had picked something a bit, er, different. Like quantum mechanics, perhaps.