cosmology and astronomy are some of my favorites. You will find there are a lot of people who enjoy them. There is also a fair smattering of scientific articles posted here, with good discussion, and as technical as anyone can handle.
(Sometimes I have to ask my husband to interpret, he graduated from MIT and understands the math and physics better than I do!)
“(Sometimes I have to ask my husband to interpret, he graduated from MIT and understands the math and physics better than I do!)”
I have enjoyed it for along time and my 10yr old son is really into science. He has gotten me into Blackhole Theory. But, it’s just a hobby for me, I am no expert, I usually lurk those threads.