Chrysalis (station)

You may be looking for Chrysalis (book).

Years before the 2017 apocalypse, a fully self-sufficient AI (later named Skippy by Sarah Harden) was given full autonomy by Project Nemesis to build a space station called Chrysalis. Skippy realized fairly quickly that the original plan, to let Earth heal itself after Nemesis destroyed it, would not work, and instead came up with a new idea: to terraform Mars. At some point, all of the data from the four working MegaComs was uploaded onto Chrysalis.

In the year 1336767 AD, a group of teens from Nemesis 1 and 3 overtook Sophia, an alien consciousness who had shut down Skippy, and shut down the station, successfully crashing it onto Mars.