Mention Of Pulsars In The Quran
What Exactly Is A Pulsar?

At the end of their life stars transform into a different form depending on the mass of the star as I told you in detail in Quran Miracles: Blackholes. One of the forms that stars transform at their end is Neutron stars. They created when large massive stars die in supernovas and their cores collapse, with the protons and electrons melting into each other to form neutrons. Neutrino Stars are heavy mass stars that keep on fusing heavy and heavy elements until they end up at Iron. As I told you in Part 18, you cannot get energy out of fusing Iron. The star collapse and electron combine with the proton to make neutrons.
Atoms As Heavy As Mountains

If a neutron star were any denser, it would collapse and convert into a black hole and disappear. They are very dense 1.4 to 3 solar masses in a radius of 10 km. One spoonful of matter from a neutron star would weigh about a billion tons or more than the weight of many mountains on earth, and if we drop that spoonful matter on earth, it would pierce it and end up in its center. Just think of it, a spoonful of any matter on earth hardly weighs more than a few grams.

Miracle Of Quran Surah Tariq
Now, look at what the Quran says almost 1400 years ago in Surah Tariq verses 1-3.
وَالسَّمَاءِ وَالطَّارِقِ
٢ وَمَا أَدْرَاكَ مَا الطَّارِقُ
٣ النَّجْمُ الثَّاقِبُ