10. [Urdu] What is Dark Matter?

Dark Matter is one of the biggest mysteries in science today. It makes up 80% of all matter and yet it is nothing like us, our planet or our Sun. It does not emit or absorb light. If we cannot see it, then how do we know it exists? And ultimately, what do we think dark matter is made up of? To think about these questions, please join astrophysicist, Salman Hameed, in this episode of Kainaati Gup Shup.