Milky Way
Milky way is a huge whirlpool that takes 200 million years to rotate once.
It is made up of 100 billion stars, dust and gas.
It is so much huge that, it takes 1 lakh light years to pass from one end to other end of milky way.
When a person sees milky way at night (yes it is possible to see milky way at night under specific conditions) , he sees only 0.0000025% of whole milky way.
The center of galaxy contains a black hole named sagittarius A* which is hard to see because of dust and clouds blocking view
The sun,earth and rest of solar system is located 27000 light years away from milky way's Galactic center, on the inner edge of a minor arm of galaxy, named orion arm.
If earth orbited the sun at the same speed that stars orbit at the centre of milky way, then earth would take only 3 days to revolve around sun.
Aniket kulkarni
Footnotes:
Image source :Milky way image
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