If scientists assume local measurements are correct, what potential modification to the $\Lambda\text{CDM}$ model is suggested regarding dark energy?
Answer
The dark energy density ($\Lambda$) is not constant but evolves over time.
If the local expansion rate is correct, one possibility is that the parameters of the standard model are slightly off, specifically that the density or nature of dark energy has changed since the early universe era represented by the CMB.
Related Questions
What is the physical mechanism behind the separation of distant galaxies?What is the rate of cosmic stretching quantified by, and in what units?What is the specific term used to describe the significant discrepancy between expansion rates derived from local and early universe measurements?What approximate value for the Hubble Constant is generally predicted based on Cosmic Microwave Background (CMB) data?Which of these is a primary tool used in the 'cosmic distance ladder' to measure the expansion rate in the local universe?What concept counteracts gravity and drives the accelerating expansion of the universe?How did the data collected by the James Webb Space Telescope (JWST) affect the Hubble Tension?Which statement correctly describes the relationship between cosmic expansion and the speed of light ($c$)?According to the text's analogy, what does the local measurement using a tape measure represent?If scientists assume local measurements are correct, what potential modification to the $\Lambda\text{CDM}$ model is suggested regarding dark energy?