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the claim
The large-scale spatial geometry of the universe is constrained by cosmological observations
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
6 sources for · 0 against

Extensive cosmological observations, including precision measurements of the cosmic microwave background by Planck and WMAP alongside Type Ia supernovae surveys, strongly constrain the large-scale spatial geometry of the universe.

Evidence for · 6
<i>Planck</i> 2018 results
2020 · cited by 14,349
Planck 2018 data tightly constrain spatial curvature and cosmological parameters, demonstrating precise observational constraints on the universe's spatial geometry.
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The analysis

The retrieved papers provide robust and extensive empirical evidence from cosmic microwave background experiments (Planck, WMAP) and supernova surveys demonstrating that cosmological observations tightly constrain the large-scale spatial geometry and curvature of the universe. There are no papers refuting this well-established consensus.

More for · 5
<i>Planck</i>2013 results. XVI. Cosmological parameters
2014 · cited by 6,589
Planck 2013 results show that cosmic microwave background measurements constrain spatial flatness to percent-level precision.
Planck 2015 results
2016 · cited by 5,476
Planck 2015 observations confirm that the spatial curvature of the universe is extremely close to zero based on high-precision temperature and polarization data.
NINE-YEAR <i>WILKINSON MICROWAVE ANISOTROPY PROBE</i> ( <i>WMAP</i> ) OBSERVATIONS: COSMOLOGICAL PARAMETER RESULTS
2013 · cited by 5,107
WMAP nine-year observations provide high-precision constraints on matter density, energy density, and spatial curvature.
Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
2016 · cited by 2,659
The final WMAP parameter results further constrain cosmological models and spatial geometry parameters.
The High‐Z Supernova Search: Measuring Cosmic Deceleration and Global Curvature of the Universe Using Type Ia Supernovae
1998 · cited by 1,524
Early Type Ia supernova measurements from the High-Z Supernova Search successfully constrain the global curvature and deceleration parameter of the universe.
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first checked31 Jul 2026
judged → SUPPORTED · 10031 Jul 2026
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