Planet orbiting multiple stars.
1400 years ago people thought that there is just one sunrise and one sunset. Nobody believed that there are planets with multiple sunrises and multiple sunsets. Today we know that this is false. NASA discovered a planet having three sunrises and three sunsets.
Newly-Discovered Planet Has 3 Suns
If you thought Luke Skywalker's home planet, Tatooine, was a strange world with its two suns in the sky, imagine this: a planet with either constant daylight or triple sunrises and sunsets each day depending on the seasons (which last longer than human lifetimes). Such a world has been discovered by a team of astronomers led by the University of Arizona using direct imaging. The planet, HD 131399Ab, is unlike any other known world - one with, by far, the widest known orbit within a multi-star system...
NASA, Newly-Discovered Planet Has 3 Suns, 2016
Planets orbiting one star like Earth are very common. Planets orbiting a binary star system (2 stars) are less common. But now NASA discovered a planet orbiting 3 stars. This means if you are standing on that planet you will have 3 shadows, one shadow from each sun. This was known recently; however this was portrayed in the Quran 1400 years before it was discovered. While describing Hell:
[Quran 77:30-31] Proceed to a shadow of three branches. No shade, and no protection from the flames.
"Shadow of three branches" means it has three suns, one shadow from each sun. This is a triple-star system.
[Quran 70:40] I swear by the Lord of the sunrises and the sunsets, that We are able...
"Mashreq مَشَرِقِ" means single sunrise. "Mashreqain مَشْرِقَيْنِ" means double sunrises. In this verse "Mashareq مَشَارِقِ" means multiple sunrises (3 or more). Today we know what it is, it is multi-star system.
How could an illiterate man who lived 1400 years ago have known that planets could have multiple sunrises?