what is galaxy? all you need to know about it …
A galaxy is a massive, gravitationally bound system that consists of stars, stellar remnants, interstellar gas, dust, dark matter, and other celestial objects. The various components of a galaxy orbit…
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What is astronomy? what are the branches of astronomy? what is the career option it offers?
fact — ” universe is so big as big it is that we can’t even imagine by oun tiny brain as much as we try to figher out of it…