What is SPACE??🌌

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 distance that light takes to travel in a year. This is roughly about 9.3trillion km. Too much!!

• Dark matter

       This is something that leaves everyone muddled. Observations claim that 90% of the mass of galaxies may exist in an unknown form called "dark matter". It interacts with other matter through gravitational forces but not with electromagnetic forces. I'll explain everything about 'mystical dark matter' in my coming blogs. Since I have a lot to tell you, friends...

• Imagine yourself in space without a spacesuit...

       This thought is really spine-chilling. As space is beautiful but at the same time vulnerable. The sudden absence of external pressure that balances the internal pressure of the body would damage delicate tissues, such as the eardrums and capillaries. The body would swell, causing tissue damage and the lack of oxygen supply to the brain. It'll make you unconscious in under 10 seconds. Bubbles would form in bloodstreams making it ineffective as a transporter of oxygen to the body's cells... In the end, your organs, skin, etc will stretch much like a pumped-up balloon.

       Hmmm...not a good death😂

                                                

• Temperature

       The baseline temperature in space is around 2.7 Kelvin. We know this is based on the background radiation from the big bang. The temperatures in outer space are hazardous. The objects that receive sunlight in space and are at Earth's distance from the Sun, can scale to over 120°C while those on the shaded side can be as low as -100°C. This is certainly a grave problem.

This is all about today...hope you like the information...do subscribe, follow and share

• I'm going to start a star series with coming

       blogs...So stay tune❤️

Let us look at the amazing things that exist high up in the sky that leave us awestruck every time we explore it...🌌