In Karen’s latest Staff Report "What’s the temperature of space?, she states
So, the Universe is 2.7250(20) and the Milky Way is 2.7251(20)? Notice that the difference is only 5% of the error bars. Can we really measure the temperature difference of the Milky Way vs the Universe that much more precisely than the absolute temperature of either? I guess it’s possible, but I’d like some confirmation.
Oh, and good report.