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In astronomy it is the almost spherical layer of stars surrounding the center hub of our galaxy. A layer in the onion, so to speak.

It is a widening near the core (the centre) of a galaxy and consists of mainly very old stars. Very rare for new stars to form because of the lack of dust and gases between the stars. Surrounding this central bulge is what's called the galactic halo, which is made up of individual stars.

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Q: What is a central bulge?
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Why do new stars form in the arms of a spiral galaxy and not in the central bulge?

Stars form in all parts of our galaxy - not just the "arms". Stars do indeed form in the central bulge. The vast majority of hot, young, blue stars are formed in the arms, but stars also form in the central bulge as well.


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How might your view of the milky way be different if the sun were located inside the central bulge?

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There was a strange bulge in the lawn.The Battle of the Bulge is a historic event.Karen went to the doctor as soon as she noticed a bulge beneath one of her breasts.


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