It is the year 2038, and the Earth is slowly being consumed by a space-borne monstrosity dubbed the Black Tide, which is using nanotechnology to remake the planet into something hideously alien.

Erin Olsen works for Project Harmonics, humanity's last-ditch effort to find a new world before the Tide can wipe them out. But when that world is found, and it turns out to be occupied, Erin will need to find the courage to face the unknown in order to save the inhabitants of both worlds.

(Many thanks to Easteu for the fantastic cover image for this story!)

Now with its own TV Tropes page

There is now a follow-up to this story: Sunflower - Side Projects
Sequel: Project Sunflower: Harmony

Humans.

Truth or myth? Ancient lost civilization or just an old pony's tale?

No pony has ever seen one, and most haven't even heard of them. But Lyra knows that these wonderful creatures are more than just old legends, and she's going to find out... and possibly drive her roommate insane in the process.

After the disastrous invasion of Canterlot, an injured changeling wakes up near a small cottage and is quickly discovered by two of the last ponies she ever wanted to see. Now, with the help of her new "friends," she has to remain undetected in a town high on changeling hysteria that would not hesitate to throw her in the Canterlot dungeons should her true nature be revealed.

Simple, right?

Too bad she couldn't have picked a worse form to stay inconspicuous...

Many thanks to ZuTheSkunk for the cover image!

==Originally written spring 2011== Equestria Daily Post==
GLaDOS is free of Chell, free to continue testing, when she discovers a portal gun Wheatley tried to repair with duct tape. When the portal gun catastrophically fails, the enrichment center, GLaDOS, and Chell are literally dropped in the middle of Equestria. The mute test subject soon finds the world of ponies far more welcoming than the human world. But GLaDOS sees possibilities. Let the testing begin... for science.

On secret assignment from Princess Celestia herself, Twilight investigates a powerful magical artifact for clues to the mystery of Luna's transformation in the evil Nightmare Moon. Incautious use of the artifact sends Twilight hurtling back in time. Can Twilight discover what caused Luna's transformation? And will she ever make it home again?

Kickass cover art used with permission from Bitz.
http://allthebitz.tumblr.com/

In an alternate reality, Discord found his love of chaos came in handy for babysitting young foals. For two thousand years, since he and the princess' were kids, he's babysat nearly everyone in Equestria. Now he's babysitting the cutie mark crusaders, and while he does he recounts with them his many babysitting jobs of your favorite characters as fillies, one by one.

It is the summer of 2020. The popular TV show "My Little Pony: Friendship is Magic" has finished its eighth, and what appears to be final, season. In the wake of increasingly violent attacks by an extremist Internet-based terrorist group, the founders of the popular pony site, Equestria Daily, decide enough is enough. Bronies from all over the world have gathered in a small, abandoned industrial park in the run-down outskirts of Chicago to find the culmination of their dreams: Equestria. Through the wonders of science, they flee Earth for a land of magic, mystery and secrets. They will be weighed, they will be measured... will they be found wanting or will their dreams come true?

Story Idea inspired by a chapter in Shipping and Handling by PegasusRescueBrigade.

Cover image is a composite of the original Stargate movie poster and 'Canterlot At Night' by Cosmicunicorn, Source

The Sequel: Magical Wizard Brony Detectives

The Medallion of Light and the Medallion of Shadow are some of the most powerful yet obscure artifacts of antiquity. Created by a now-vanished cult of assassins, the two devices together give their bearer the incredible power to walk the worlds with but a single step.

Nefarious forces are closing in on both artifacts, and very little stands in their way. Heinrich Himmler's agents covet the medallions for the greater glory of the Third Reich. Ahuizotl's simply want their master to get what's coming to him: the world, and everything in it.

With the fate of all good people and ponies in doubt, one thing's for certain: saving two worlds would be one hell of an adventure. And if adventure has a name, it must be Daring Do… or is that Indiana Jones?

Will our heroes win the day? Find out in... Daring Do and the Medallion of Shadow! Or, Indiana Jones and the Medallion of Light!

NOTE: there will be some violence in this story, but nothing more than you would expect to see in an Indiana Jones movie-- so I didn't check the "gore" content box.

Artwork by Tzelly-el.

Special thanks to SapphireStarlightPony & Rated Ponystar for helping with the brainstorming on this one.

Thanks to this stupid thing I've had the Indiana Jones theme song stuck in my head for like the past four days and I am about to claw my eyes out AAAAAAAHHHHH @_@

What if Rainbow Dash had been present when Discord gave the Mane Cast their first shot at him? How could things have gone different? How could this have changed things?How could this have changed Twilight?

Update Schedule Below the Break.
Now with the super editor FredMSloniker!
Now with a wonderful cover image by Conicer!
Also - Awesome Fanart - http://nyuuchandiannepie.deviantart.com/art/Discolight-273099814

Update Plans
December 11 - Edited versions of first four chapters
December 14 - Chapter 5
Future updates at least 1 time per week.
Total Planned Chapters - 12

Twilight is an intelligent mare, and always has something to say. But when a group of bizarre creatures shows up at her library offering life long service and devotion, for once she's at a loss for words. Which is too bad, because she'd really love to ask: what's a human and why are they so weird?

Story Image by: Megan Lara