Universe Ingredients: What Makes Up Our Universe?

  • Thread starter Thread starter wolram
  • Start date Start date
  • Tags Tags
    Universe
AI Thread Summary
The discussion centers on the composition of the universe, highlighting that heavy elements, stars, neutrinos, and other known matter constitute only about 0.53% of the total universe. The majority, approximately 95%, is made up of dark matter and dark energy, raising questions about the validity of current theories. Participants express skepticism about these theories, noting that they are based on observational data but may require adjustments. The conversation emphasizes the need for ongoing inquiry into these foundational concepts in physics. Ultimately, the figures presented prompt a reevaluation of accepted cosmological theories.
wolram
Gold Member
Dearly Missed
Messages
4,410
Reaction score
555
In an attempt to find out what our universe consists of i have
gathered these figuers.

Heavy elements, "us stuff" 0.03%
stars 0.5%
neutrinos 0.3%
free hydrogen and helium 4%
dark matter, energy 95%
--------------------------------------------------------------------------------------------------
hydrogen atoms 90% to 95%
helium atoms 5% to 10%
all other elements 1%
---------------------------------------------------------------------------------------------------
Black hole mass ratio to host cluster 0.5%
----------------------------------------------------------------------------------------------------
If these figures are correct then it is a sobering thought that all
the stars, planets, BHs and other "bodies only make up 0.53% of
the total ingredients in the universe.
 
Astronomy news on Phys.org
don't you think that it is also a suspicious thought?

doesn't that thought make you question the theories that gave birth to them?
 
Theories that gave birth to these numbers did not come out of nowhere. They are based on observations. Physicists are willing to listen to any theory that is consistent with these observations. At the moment this is what seems to work best.
 
shrumeo said:
don't you think that it is also a suspicious thought?

doesn't that thought make you question the theories that gave birth to them?
----------------------------------------------------------------------------------------------------
The theories you refer to are probably, dark energy, matter,
although these theories are unintuitive they are generally
accepted, Do i question them, of course i do, i find many of
these theories are not to my liking, but these are the numbers,
maybe some adjustments are needed , others may give some
input, but i think they are in the" ball park".
 
Publication: Redox-driven mineral and organic associations in Jezero Crater, Mars Article: NASA Says Mars Rover Discovered Potential Biosignature Last Year Press conference The ~100 authors don't find a good way this could have formed without life, but also can't rule it out. Now that they have shared their findings with the larger community someone else might find an explanation - or maybe it was actually made by life.
TL;DR Summary: In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect alien signals, it will further expand the radius of the so-called silence (or rather, radio silence) of the Universe. Is there any sense in this or is blissful ignorance better? In 3 years, the Square Kilometre Array (SKA) telescope (or rather, a system of telescopes) should be put into operation. In case of failure to detect...
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed). n.b. I start this...
Back
Top