THE UNIVERSE.pptx IS CFMFCMFMXFTMYGMYXFJNXFRYJHNR

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1. THE UNIVERSE

2. HOW BIG IS OUR UNIVERSE? It is even impossible to even imagine its size . The estimated diameter of the observable universe is about 93 billion Light Years.

3. MAIN TERMS 1 COSMIC YEAR -2.25*10^8 YEAR 1 LIGHT YEAR -9,460,730,472,580.8 KM

4. GALAXY A Galaxy is basically a large group of stars, gas and dust held together by gravity. This is the simplest definition of a galaxy.

5. If you make something smaller by squishing it, its gravity becomes much stronger. Imagine then, if you squish a star into the size of an atom how powerful its gravity would become. A black hole's gravity becomes so powerful that anything, including light that gets too close, gets pulled in. That's right, not even light can escape the grasp of a black hole .