It can be difficult sometimes, because so much of astronomy is visual. When I did research for my PhD, I mostly looked at big tables of numbers (all of the numbers told me different things about galaxies, like their shape, their size, their colour etc) There are ways of getting around not being able to see well though. Most of what I work on right now involves finding ways to not use vision to understand astronomy. I also get to talk to people about astronomy, which doesn’t need vision at all.
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