Cosmos is very large. There are many blackholes, stars, galaxies, and planets. What is in our cosmos? How cosmos looklike? In the last post, I explain about structure of Solar system. And let's learn about structure of the cosmos. Many planets, many asteroids, many moons, many comets, and one star consists One solar system. There are many solar systems in our cosmos. Many solar system consists One galaxy. This is our Galaxy "Milky Way"
Solar systems turnscenter of galaxy. Galaxies usually have blackhole in its center. Blacke hole's gravity is very strong, so galaxies do not break up. There are many galaxies in our cosmos.
(M31) 
( Andromeda)
Many galaxies consist "Local groups of galaxies"
And there are many local groups of galaxies in our cosmos. Comsmos is very large. We can't see all of cosmos. Because cosmos is growing faster than light. May be our humans will go to these worlds!
Earth-Solar system-Galaxy-Local groups of galaxies-Cosmos
Solar systems turnscenter of galaxy. Galaxies usually have blackhole in its center. Blacke hole's gravity is very strong, so galaxies do not break up. There are many galaxies in our cosmos. (M31) ( Andromeda)Many galaxies consist "Local groups of galaxies"
And there are many local groups of galaxies in our cosmos. Comsmos is very large. We can't see all of cosmos. Because cosmos is growing faster than light. May be our humans will go to these worlds!
Earth-Solar system-Galaxy-Local groups of galaxies-Cosmos
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