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Peralta_Man
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Just recently, I heard that at the speed the galaxy is currently spinning gravity alone is not a strong enough force to hold everything together. If that is true, what is the extra force that keeps the galaxy together?
Peralta_Man said:i don't know much about dark matter,
The galaxy is held together by the force of gravity. This force is generated by the mass of all the objects within the galaxy, including stars, planets, and dark matter.
Yes, there is a center of the galaxy known as the galactic core. This is where the majority of the galaxy's mass is concentrated, including a supermassive black hole.
The galaxy maintains its shape due to the balance between the inward pull of gravity and the outward force of rotation. This creates a stable disk shape for spiral galaxies, while elliptical galaxies have a more spherical shape.
Dark matter is believed to make up the majority of the mass in the galaxy and plays a crucial role in holding the galaxy together. Its exact nature is still a mystery, but its gravitational effects are crucial for the stability of the galaxy.
No, the galaxy is not expected to fall apart. The force of gravity, along with the rotation of the galaxy, keeps it in a stable and balanced state. However, over billions of years, the galaxy may undergo changes and mergers with other galaxies.