What is SPACE??π
Hey there!! Welcome back to my cosmic world... You all might have wondered ..." what is this space?"...why we even calling it space? What is there in space? How big it is? How we feel out there??...and more. These queries used to fascinate me a lot in my childhood. So, here we go... Space begins where Earth's atmosphere ends. It is the empty void that exists between various celestial bodies, including Earth. Yet it is not completely empty. It consists of a hard vacuum with a low density of particles, mostly plasma of hydrogen and helium, as well as some electromagnetic radiation, magnetic fields, neutrinos, dust, cosmic rays, and much more... Yes, indeed!! The so-called 'empty space' is not so empty. Even the emptiest parts of space contain at least a few hundred atoms or molecules per cubic meter. How big it is? It is boundless, no one really knows how big it is. Long distances in space are measured in 'light years', which represents the distan...