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

Cadance didn't know what to expect when her formerly banished Aunt Luna returned from her thousand year banishment. But, she's quite entertained by the hilarity. Especially if it means a chance to play a little joke.

Edited by Habanc. Preread by The Albinocorn, Foals Errand, and Timaeus

Cover art was done by Silfoe and used with permission! In fact, this fic is a gift for her!

Now with Spanish translation by SPANIARD KIWI.

After the defeat of Tirek, Equestria is safe once more, but Luna can sense that her sister is troubled. When Celestia retreats to the starry realm of ascension in order to look upon the past, Luna joins her to discover what is bothering her.

There is now a Spanish translation of this story, courtesy of Spaniard Kiwi

Time Travel - The act of traversing time in a direction other than "Forward". It is widely considered impossible. But that won't stop this pony from unlocking its secrets.

These are the tales of Small Changes, and how they can have large impacts.

Note: Tags are subject to change.

Twilight is in a room. There is a golden hammer and a cup of water. She must choose between the two.

By the end of this test, an unlikely lesson will be learned.

The nation of Equestria has been exploring their little slice of the universe for some time now. From launching probes into deep space, to landing ponies on the moon. Sending things beyond the grasp of their planet has become almost routine. However, with every mission into space, there comes a time when the voyage must end. What happens when Equestria experiences the end of a voyage that they didn't begin?

Updated and Revised on October 5th, 2014

Twilight Sparkle conducts an experiment and succeeds in obtaining an unusual flower with some intriguing properties.

What it could teach her, however, might prove to be more than she bargained for. She finds herself having to face surprising—and maybe frightening—new possibilities about the universe. How does it work? What is 'real', exactly? And why are these suddenly such uncomfortable and challenging questions for her?

Pre-reading and editing for this story was done by Grand Moff Pony, The Dobermans, SIGAWESOME, Reese, Georg, LCranston, and Equestria Daily pre-readers 63.546 and Slorg. Many thanks to all of them for helping this get where it is!

Now with an audio reading by TheDizzyDan!

This story is a sequel to Sounds of Lunacy

Celestia's latest prank against her sister was a resounding success. But now Luna has sworn revenge, and she will stop at nothing to get back at Celestia. For her part, Celestia is confident that nothing Luna has planned can possibly get to her.

Well, except perhaps one thing.

A lonely alicorn wanders her castle prison, searching for any signs of life besides her own.

Inspired by the song "Hallowed Waltz" by Makkon
http://www.youtube.com/watch?v=vHApVIdbEyo
I encourage you to listen to the song as you read.
Cover art also by Makkon

On the night before Hearth's Warming Eve, as she slumbered peacefully in her warm bed, Celestia found her dreams interrupted by her younger sibling, who comes to her chambers with an idea in mind.

Artwork by the person on the other end of this link to the image.
http://mlpforums.com/uploads/post_images/img-2102581-2-187951__safe_princess+luna_princess+celestia_snow_snowball_snowball+fight_artist-colon-centchi.png

Written for the 'Celestia and Luna December Fanfiction' writing contest.

POPULAR SECTION - 19th December, Friday, 2012. Again? You all must really like me! I love you all! Especially the, ah, lovely ladies among you...wink, wink. XD Merry Christmas to you all!