Because physics is just a trick, designed to tell you a bunch of lies. Some of you are strange people.
In any case, if you'd read the article you'd note that it's not a measurement. It's a calculation based on the various forces at work.
And science is capable of measuring a great many things very precisely. You'd obviously be surprised.
A centimeter? Concerning bodies as big as the sun and Earth? With the earth in an eliptical orbit?
Extraordinary claims require extraordinary evidence. They are going to need to show me their work. They can’t just make the claim.
I’ve learned that in modern times we know a lot more than we did in the past and many of the things we knew in the past has been discovered to be dead wrong. Thing is, the past used to be “modern times”. So I see science of today from the lens of a thousand years from now. I see it as wanting and I don’t fully trust it.
https://www.youtube.com/watch?v=JKHUaNAxsTg