Assalamualaikum, what does the Quran say about black hole?
Alaikumassalam wa rahmatullah,
There is no mention of black holes in the Quran as far as I have found.
The Quran seems to mention the big bang:
… the heavens and the earth were one mass, and We tore them apart … (The Quran, verse 21:30)
It also seems to mention the expansion of the universe (which was only discovered in the 20th century):
We constructed the universe with power, and We are expanding it. (The Quran, verse 51:47)
Update: A follower alerted me to a new interpretation of verses 81:15-16 of the Quran which say:
I swear by the invisible/receding/compressed ones.
The moving, sweeping/destroying ones.
These verses have often been interpreted as a reference to the stars or planets, but they could also be a reference to black holes.