It's nearing the summer sun celebration, one year after Twilight arrived, and things are not going according to plan.
Preperation is behind schedule, supplies are still needed,
And to top it off, Twilight has accidently turned her friend's pets into ponies!
Without an easy antidote and time growing short, the mane six decide to let the pets help them in the celebration.
And they'll need all the help they can get.

An Earth ship is thrown to another galaxy by an Ancient device. There it picks ups a distress call from another vessel under attack. The Tau'ri ship, the Firestorm an Ancient Hunter-Killer from the Pegasus Galaxy, moves to investigate. Once there the commander is shocked to what he finds. A frigate name the Ponyville.

Takes place a year after Stargate Universe and one thousand years after the end of Friendship is Magic.

An archeologist finds himself pulled into a parallel world by Discord's storm of Chaos, and encounters the mysterious creatures that live there. How will a rational human, confronted by creatures out of mythology, and unable to find his way home, adapt to his environment? Only one way to find out.

Pinkie Pie and Fluttershy thought they were going to help banish Discord for a third time with their friends and the two princesses. That was precisely what was happening until they both found themselves suddenly transported to a strange new world under a flashing pink sky.

A man named Doug "TheSlorg" Collins finds two young women who are naked, confused, and smell of fudge in the Australian Outback. He then reluctantly agrees to help them return home. But when "home" turns out to be Ponyville, things become a bit more complicated than he bargained for.

Part of the PonyFall collaboration series.
Visit the PonyFall TV Tropes Page
Temporary cover art by Speccysy

Celestia is dying. Or at least it seems so. Afflicted with a curse that is destroying her very nature, she sets a plan in action.
The Bearers of the Elements of Harmony will take the throne in her wake... Not that they know that yet...

(Takes place as an Alternate Season 3)

Cheer up, Twilight. It's not every day somepony changes species. In fact, no pony has ever changed species. It's something new and you like discovering new things. Granted, Equestrians don't like new things, especially things that fundamentally alter their government. So maybe there is reason not to be happy after all.

When your life is as dull a gray as the world that surrounds you, the mundanities can make it all seem meaningless. Sometimes all we need is a little color -- or six -- to reintroduce us to what truly makes life worth living.

*6-16-2017 Edit, added Rainbow Dash tag because it triggered knighty.*

It occurred one peaceful night. Half of Equestria awoke to the sound like a double-shot thunderclap. A percussion heard in the skies and rattling windows from Apploosa, to Canterlot, to Ponyville. Nopony knew what it was or what it heralded for the world as it drew a line across the nation.

For Twilight Sparkle, this isolated incident might have faded from memory after a time, if not for the strange rumors of a creature sitting on the hill on the outskirts of town.

These are her thoughts given written form. These are Sparkle's Notes.

Report EVERYTHING to the Princess.

Traveling between parallel universes is impossible, especially during the process of regeneration, but the Tenth Doctor doesn't have time to question the facts. He's just been thrust through a tear in the fabric of reality, gotten a new body, and landed on a planet called Equestria. Specifically, he's landed in the worst possible place in all Equestria – somewhere that's ready to unleash a “big ol' storm of chaos”.

That's just the beginning of the Doctor's strange new lease on life: there's a whole host of mysteries to explore. Who is Derpy Hooves, the gray pegasus who understands more about him than even she knows how to explain? How does Princess Celestia already know him? And what's the truth behind the Order?

Above all, the Doctor needs to discover if this new universe can heal the wounds he suffered in the last. Only one thing is certain: there's an awful lot of running left to do.

(Warning: For those of you who haven't watched up to the Doctor Who episode 'The End of Time'... spoilers. Also, this story begins between Seasons 2 and 3 of FiM, and things start to... diverge from there.)

Side stories can be found at The Merely Mundane Tales (of a Mad-Pony in a Box).

Three girls. How did three girls manage to completely obliterate my understanding of the universe? Well, I guess I shouldn't call them girls (even though they look like they are), ponies would be the better description.

All I wanted was a nice breakfast and a chance to skip class. But the world decided to break on me instead, or maybe I broke it. I can't really make heads or tails of things anymore.

But what I do know is that I found three girls and they were scared. I can't believe I'm saying this, but I've got to help the Cutie Mark Crusaders get back home.

Part of the PonyFall Collaboration

Cover art by suirobo