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Johnjbarton (talk | contribs) →Dark Energy may be weakening over time: Delete section on March 2025 results that are controversial and unconfirmed. Not encyclopedic. |
Johnjbarton (talk | contribs) →Unfalsifiability: The only source cited is about conventionalism |
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The missing baryon problem is claimed to be resolved. Using observations of the kinematic [[Sunyaev–Zeldovich effect|Sunyaev–Zel'dovich effect]] spanning more than 90% of the lifetime of the Universe, in 2021 astrophysicists found that approximately 50% of all baryonic matter is outside [[dark matter halo]]es, filling the space between galaxies.<ref>{{Cite journal|last1=Chaves-Montero|first1=Jonás|last2=Hernández-Monteagudo|first2=Carlos|last3=Angulo|first3=Raúl E|last4=Emberson|first4=J D|date=2021-03-25|title=Measuring the evolution of intergalactic gas from z = 0 to 5 using the kinematic Sunyaev–Zel'dovich effect|url=https://academic.oup.com/mnras/article/503/2/1798/6184230|journal=Monthly Notices of the Royal Astronomical Society|language=en|volume=503|issue=2|pages=1798–1814|doi=10.1093/mnras/staa3782|doi-access=free |arxiv=1911.10690 |issn=0035-8711}}</ref> Together with the amount of baryons inside galaxies and surrounding them, the total amount of baryons in the late time Universe is compatible with early Universe measurements.
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It has been argued that the ΛCDM model is built upon a foundation of [[conventionalism|conventionalist stratagems]], rendering it [[falsifiability|unfalsifiable]] in the sense defined by [[Karl Popper]].<ref>{{Cite journal | doi=10.1016/j.shpsb.2016.12.002| title=Cosmology and convention| journal=Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics| volume=57| pages=41–52| year=2017| last1=Merritt| first1=David| arxiv=1703.02389| bibcode=2017SHPMP..57...41M| s2cid=119401938}}</ref>
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