What is the name of this Sci-fi/thriller book?

Question

Read a long time ago - in it, scientist end up sending a probe to apparently another dimension, where the probe malfunctions and the camera points up at the red sky for hours. (Also sort of remember there being two suns). Eventually there is a fleeting movement from a dark shape that flies past above. The shape, when enhanced, looks like a demonic shape from traditional folklore. I don't remember much else, I think they may have sent some scientists over eventually, who end up dying/killing themselves. I also seem to remember there was some type of dark plant life they caught in the footage that was unidentifiable as a known species...

I know that's pretty vague, but it's driving me crazy!

Answer 1

Is it Spin by Robert Charles Wilson?

Answer 2

Sounds like a part from Seize the Night by Dean Koontz