Interesting sutta that talks about a type of intergalactic void that even the light of moon and sun has no foothold. I suppose that is the black hole which is discovered by contemporary science. It’s really amazing that the Buddha had discovered this phenomena way before modern science did.
Andhakāra Sutta SN 56.46
“Mendicants, the boundless desolation of interstellar space is so utterly dark that even the light of the moon and the sun, so mighty and powerful, makes no impression.”