For general science I like Knowable Magazine (RSS)
Both are pretty accessible but fairly meaty, hopefully that’s what you’re after. Ars Technica has some lighter stuff.
https://en.wikipedia.org/wiki/MathWorld
https://mathworld.wolfram.com/
I see people using wolfram occasionally.
mander.xyz is lemmy, so I don’t know if it counts, but the local comms are all science oriented and have science articles. The server is supposed to be life-sciences oriented, but I think the space comm is one of the largest.
Op wants nothing to do with any part of lemmy that is not lemmy.world for whatever reason.
I suggest and support (and endlessly scroll thru) Mastodon Science
Might sound weird, but hackaday.com is a good site for engineering and science. Once I made it a regular spot, I started to learn a lot in the realm of STEM and security.
