What prevents a galaxy from disbanding?
Luke AllenGravity.
A black hole is thought to reside at the center of every galaxy. Because of the nature of black holes, their gravitational pull is thought to continue out to the edges of every galaxy and possibly beyond, maintaining the structure of individual galaxies.
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Claire AnctilA galaxy can't break apart because of the gravitational pull that exists between its stars and dark matter.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
- How do black holes relate to the formation of galaxies?
- What appears to be the central energy-generating system or engine that is producing prodigious amounts of energy in the centers of galaxies, active galaxies and quasars?
- What is a planetary nebula?
- What is the Hertzsprung-Russell diagram and why is it so important to astronomy research?
- What is a planetary nebula? Why do many planetary nebulae appear as rings?
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