I like cosmic horror and a good one I've found is The Abyss Above Us by Ryan Notch. It's the story of a computer engineer hired to investigate why a radio observatory's dish keeps reorienting itself to point at an area of sky with nothing interesting about it.
The astronomers believe it's pointed at a cosmic void, an area of the universe where stars never formed. It's pitch black. Turns out it's actually pointed at something much closer and unimaginably dark in front of those stars.
I just added this one to my TBR! The synopsis reminds me of a shorter Three Body Problem (which I really...liked? I'm not sure that's even the right word for that series lol).