How can the universe be moving faster?

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SUMMARY

The discussion centers on the distinction between dark matter and dark energy in the context of the universe's accelerated expansion. Dark energy, derived from empty space, is responsible for this acceleration, creating a feedback loop that leads to instability. In contrast, dark matter behaves like regular matter, exerting gravitational pull to bring celestial bodies together. Understanding these concepts is crucial for grasping the dynamics of cosmic expansion.

PREREQUISITES
  • Understanding of dark matter and dark energy concepts
  • Familiarity with cosmic expansion theories
  • Knowledge of gravitational forces in astrophysics
  • Basic principles of cosmology
NEXT STEPS
  • Research the properties of dark energy and its role in cosmic expansion
  • Explore the differences between dark matter and dark energy
  • Study the implications of cosmic feedback loops in astrophysics
  • Investigate current theories on the stability of the universe
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Astronomers, astrophysicists, and anyone interested in the mechanics of the universe's expansion and the roles of dark matter and dark energy.

cosmicrock
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Ive read that dark matter is making the universe expand faster than usual. How is that even possible?
 
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cosmicrock said:
Ive read that dark matter is making the universe expand faster than usual. How is that even possible?

They say that dark energy is causing the universe to expand faster. The dark energy is from empty space, and the more the Universe expands the more empty space there is, so there is positive feedback and one would expect instability.
 
Dark matter is not dark energy.
In terms of gravity and the expansion, dark matter acts like regular matter, and pulls things together.
For dark energy, see the post above.
 

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