What is the pressure of the universe?

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    Pressure Universe
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SUMMARY

The average pressure of the universe is approximately 10-15 bar, primarily attributed to the presence of hydrogen molecules in interstellar space. This value highlights the vast differences in pressure across various regions of the universe, similar to the varying pressures found on Earth. Understanding these measurements is crucial for astrophysics and cosmology, as they provide insights into the composition and behavior of the universe.

PREREQUISITES
  • Basic knowledge of astrophysics
  • Understanding of interstellar medium concepts
  • Familiarity with pressure measurement units (bar)
  • Knowledge of hydrogen's role in cosmic structures
NEXT STEPS
  • Research the properties of the interstellar medium
  • Study the methods for measuring cosmic pressure
  • Explore the implications of low-pressure environments in space
  • Learn about the composition of the universe and its effects on pressure
USEFUL FOR

Astronomers, astrophysicists, students of cosmology, and anyone interested in the physical properties of the universe.

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What is the current pressure of the (whole) universe? Or the average pressure in the universe?
 
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This question is not clear. Even on Earth the pressure change from place to place. I ve heard that the pressure of interstellar space is about 10e-15 bar which is mainly due to hydrogen molecules.
 

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