Hi, I'm HK.
I'm not an astrophysicist. I'm just fascinated by the universe and trying to understand it properly.
AstroByHK is where I write down the things I'm learning, from atoms and stars to black holes, spacetime and the strange questions at the edge of modern physics.
This isn't a textbook.
It's a record of the questions I'm asking, the things I'm learning, and occasionally the things I still don't understand. Think of it as an open notebook. I hope you find something interesting here too.