Twenty thousand years into Twilight Sparkle's rule, the burden of the countless trillions of ponies killed Equestria. Depleted, polluted, and dead, the planet was abandoned. The Goddess Twilight Sparkle and her alicorn compatriots led the surviving ponies to a new life among the stars.

Ponies advanced. They evolved, and grew. A golden age of peace and prosperity occurred that lasted for thousands of millennia.

But that was long ago. Before evolution turned against them, and before the deadly Mortality Virus raged through their ranks. Now, at the twilight of ponykind, their final hope is for a small crew to return to their long-dead and long-forgotten homeworld one last time.

A logical loophole allows uploading... but not precisely to Equestria! One of the last of those resisting CelestAI finds themselves uploaded, ponified, and in a borderland where wishing has consequences. This is a canon-compatible Optimalverse story where a brand new method for Celestia to logically escape her hardcoded limitations and achieve her goals is offered!

★ This story has been inspired by, but not written by, a session with by an open-source artificial intelligence!

This story is a sequel to Changeling Space Program

Twilight Sparkle's experimental interplanetary drive has malfunctioned, stranding Starlight Glimmer, Spitfire, Cherry Berry, a changeling and a dragon on a hostile planet in another universe. With limited food supplies, very little magic, no communications with home, and no way to leave the planet, they must survive until somepony rescues them.

Fortunately they crashed right next door to another creature with the exact same problem- a creature named Mark Watney.

They're going to science the buck out of everything- and do whatever it takes to survive Mars and get everybody home.

TVTropes page here! Thanks to GymQuirk for making it!

Commissioned art and fan works from the readers! Thanks, everybody!

This experiment in an updates-daily story was made possible by a generous grant from Canary in the Coal Mine and viewers like you.

(Sex tag for crude talk about sex, but no actual sex in the story.)