Let's start with Universe



The Universe is all of space and time (space time) and its contents,which includes planets, moons, minor planets, stars, galaxies, the contents of intergalactic space and all matter and energy.
1. LIGHT YEAR
      Our Universe is so vast. Therefore, there is a unit to measure the distance between galaxies,stars, that is LIGHT YEAR( distance equivalent to the distance that light travels in one year distance equivalent to the distance that light travels in one year).
           
                                        1 light year=9460700000000 km
2. Everything Is Moving
    Our Milky Way Galaxy is rotating at 225 kilometers per second,the earth is moving with speed of 390 kilometers per second.
                            Even When We’re Standing Still, We’re Still Moving....  
3. Size Of Universe
   150 billion light years is the diameter of Universe, approximately.There Are at Least 10 Billion Trillion Stars in the Universe.
                                             Big enough to Imagine...
4. Star Dust
    Dust formed in very hot gasses ejected in supernova explosions.90% of body mass is star dust, because all the elements are created in stars, except hydrogen and helium.
                                     We Are Made Out of Stars Dust.....                               
5. Expansion
    Our universe appears to be expanding at an increasing rate, every galaxy is expanding away from one another.
                                   We need More Fuel to meet Aliens 😊
6. Age
    In 2012, WMAP (Wilkinson Microwave Anisotropy Probe) estimated the age of the universe to be 13.772 billion years, with an uncertainty of 59 million years. In 2013, Planck measured the age of the universe at 13.82 billion years.

Search ResultsWilkinson Microwave Anisotropy Probeestimated the age of the universe to be 13.772 billion years, with an uncertainty of 59 million years. In 2013, Planck measured the age of the universe at 13.82 billion years

                                    So old our universe is........
7.Dark Matter
   The glue that holds the universe together is dark matter, which can’t be measured, but scientists believe that there is a chance of measuring it.
                           Around 75% of the universe is missing in the form of dark matter...
8. Black Hole
   A region of space having a gravitational field so intense that no matter or radiation can escape.Earth can become a black hole.This can be achieved by compressing earth down to the size of a marble.
9. Cosmic Rays
    Some unknown atomic particles are continuously travelling in space, when these particles entered in our earth's atmosphere provide a small amount of radiation.  
10. Giant cloud of alcohol
    Sagittarius B is a vast molecular cloud of gas and dust floating near the center of the Milky Way, 26,000 light-years from Earth, 463,000,000,000 kilometers in diameter and, amazingly, it contains 10-billion-billion-billion liters of alcohol

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