I am working on an alternate history where the USSR won the Moon Race (by upgrading the NK-15, starting development of the N1 earlier, and making cybernetics/computer science not a "bourgeois pseudoscience".), and as a result, there is a race to Mars between the two.
However, I noticed that any technology developed for use in space can also have spin-offs back on Earth. More specifically, the IMIS (in this timeline) was a partially reusable spacecraft, with PPM-1 being partially reusable and the craft is to be assembled in EML-2 using cryogenic chemical tugs instead of in LEO and having the PPM-1 have a cryogenic chemical engine for leaving Earth's gravitational sphere of influence.
If NASA picked an updated version of the aforementioned reusable design, what would the technological spin-offs of such an effort be back on Earth, particularly those that could benefit people?
Link to my alternate history timeline, for those interested.
Oh and link to: IMIS for further information as well.