Reddit mentions of Firestar (Firestar Saga, Book 1)

It might be Michael Flynn's Firestar Saga. The first book is Firestar,

>It is the dawn of the twenty-first century, and America is in trouble. Public schools breed apathy and ignorance, and politics has become the art of the quick fix. There is one woman, though, who has both the vision and the money to leverage change. Mariesa Gorley van Huyten, heiress to one of the great American fortunes, founds an educational subsidiary called Mentor Academies and begins to subcontract public school systems in order to raise a new, less cynical generation. But her clandestine program is much larger than that: it also includes the founding of a private space program, the eventual construction of an orbital power station, and the revival of technological innovation on Earth.

[Tomorrowland](https://en.wikipedia.org/wiki/Tomorrowland_(film%29), obviously. :)

Firestar could be Elon Musk's roadmap.

Michael F. Flynn wrote the Firestar series about this same idea. Hard SF, early earth spacefaring. https://www.amazon.com/Firestar-Saga-Book-1/dp/147083619X#productDescription_secondary_view_div_1488082934454