I’m studying how the universe’s filaments are connected and evolve. It seems electromagnetism has a very interesting nature through gas/particles that exist between galaxies.
While there is still much to learn about gravity, these last couple of years has shown me cosmology and astrophysics needs to examine magnetism’s large scale relationship within our universe far more closely.
If you start studying the electromagnetic properties of celestial bodies of all sizes, there’s seems to be some level of connection and/influence.