Plots Illustrating the Hubble Constant Tension
This plot is Figure 1 from Di Valentino [2011.00246] A combined analysis of the $H_0$ late time direct measurements and the impact on the Dark Energy sector:
Slide from Adam Riess talk on 22-Feb-2021 using the above Di Valentino plot:
Below is a plot of the H0 measurement data as of July 2019 and is taken from the paper Tensions between the Early and the Late Universe. This paper is a summary review of a KITP-UCSB workshop convened to bring together both experimental and theoretical researchers in the field to review and assess the current state of affairs and identify promising next steps at resolution of this issue.
Figure 1 from [1910.02978] Investigating the Hubble Constant Tension — Two Numbers in the Standard Cosmological Model
This is from the paper [1903.07603] Large Magellanic Cloud Cepheid Standards Provide a 1% Foundation for the Determination of the Hubble Constant and Stronger Evidence for Physics Beyond LambdaCDM, figure 4, page 22. 
This next one is from a recent talk by Stefano Casertano (a co-author on the above paper). Note that he includes megamasers at the bottom of the graphic, which are not included in the graphic above. Photo is by Cora Dvorkin.
The graphic below is from an excellent Ethan Siegel article: This Is How Astronomers Will Resolve The Expanding Universe Controversy. It's a great overall review on this topic. His comments on it: “Modern measurement tensions from the distance ladder (red) with early signal data from the CMB and BAO (blue) shown for contrast. It is plausible that the early signal method is correct and there’s a fundamental flaw with the distance ladder; it’s plausible that there’s a small-scale error biasing the early signal method and the distance ladder is correct, or that both groups are right and some form of new physics (shown at top) is the culprit. But right now, we cannot be sure.(ADAM RIESS (PRIVATE COMMUNICATION))”
Other references: Slides from a talk by Stefano Casertano: Gaia DR2 and beyond: contributions to the local distance scale Additional materials from the Oct. 2018 KICP workshop: The Future of H0: Crisis or Concordance Astrobites article May 2019 May 2019 article by astrophysicist Ethan Siegel
Tags: #cosmology #H0