Loon?

That's the steam punk version of satellite internet :-)

Balloons instead of satellites!

Humans go there with Balloons, too.

https://www.ucf.edu/pegasus/why-alan-eustace-jumped/

Alan wondered

>Is it possible to build a scuba diving system for stratospheric exploration?

Or SpinLaunch. Even crazier!

You cannot launch a rocket with steam, but you could actually power a spin launch with enough, and big enough steam engines.

Jules Verne was close with the Baltimore Gun Club.

https://en.wikipedia.org/wiki/From_the_Earth_to_the_Moon