Assalamu alaikum wa rehmatullahi wa barakatuh
And a sign for them is the night; We strip the daytime from it, and so, only then they are in darkness (Surah Yasin 37)
The modern studies of Universe confirms these points.
The Major portion of the Universe is actually dark matter,with no ability to illuminate or emit light energy.
Roughly 80 percent of the mass of the universe is made up of material that scientists cannot directly observe. Known as dark matter, this bizarre ingredient does not emit light or energy.Read More
Dark matter neither emits nor absorbs light or any other electromagnetic radiation at any significant level. According to the Planck mission team, and based on the standard model of cosmology, the total mass–energy of the known universe contains 4.9% ordinary matter, 26.8% dark matter and 68.3% dark energy. Thus, dark matter is estimated to constitute 84.5% of the total matter in the universe, while dark energy plus dark matter constitute 95.1% of the total mass–energy content of the universe.
The daytime on Earth is for the part facing the Sun,the rest and the major portion is Darkness(Night on Earth as well as the night/ darkness of the Universe).So the day(something minor) is actually stripped away from night.