For an astronomy student, what often constitutes the moment of comprehension or 'aha' moment?

Answer

Realizing the true, mind-bending scale of the Oort Cloud.

The comprehension moment in astronomy is tied to awe and scale appreciation, such as grasping the immense scale of structures like the Oort Cloud or understanding stellar energy conversion.

For an astronomy student, what often constitutes the moment of comprehension or 'aha' moment?
Chemistryastronomydifficulty