Just a thought--if 'the universe is expanding' (red shift/dark energy), that is identical to 'everything in the universe is shrinking'.
'Everything' including the size of every atom, bringing Uranium atoms closer together, causing more chain reactions, lowering critical mass. In a billion years every nuke might spontaneously detonate.
Inspect your Uranium. I'd bet the half-life has changed since originally measured 90 years ago.
I'm not a subject matter expert, nor anything close
a search came up with
No, you are not expanding along with the universe. The expansion of the universe refers to the increase in distance between gravitationally unbound parts of the observable universe over time [1]. This means that galaxies are moving away from each other, but objects within those galaxies, like stars, planets, and people, are not expanding because they are bound by local gravity [1][2]. The expansion is happening on a cosmic scale, and it doesn't affect the size of smaller, gravitationally bound systems like the human body, the Earth, or the Solar System.
Citations:
[1] https://en.wikipedia.org/wiki/Expansion_of_the_universe
[2] https://www.loc.gov/item/what-does-it-mean-when-they-say-the-universe-is-expanding/
[3] https://www.space.com/52-the-expanding-universe-from-the-big-bang-to-today.html
[4] https://www.npr.org/sections/13.7/2017/05/24/529675773/what-does-an-expanding-universe-really-mean
[5] https://skyserver.sdss.org/dr1/en/astro/universe/universe.asp