The star system Omega Centauri was just another oddity on a map to scientists in the not too distant future. However when they found the star was orbiting an earth-sized, earth-like planet instead of a black hole as its motion had suggested, a mission was scrambled to investigate this most unusual of celestial behaviors.

Hamstrung by politics, and nearly crippled before it began, the 'Lone Ranger' mission was reduced to just one crew member and left to his own devices.

These are the logs of Arrow 18 and its lone commander. This information is classified TOP SECRET by the Global Space Agency.

Do NOT tell the princess.

After rising to stardom following Rarity's first, poorly received fashion show, Vinyl Scratch struggles to adapt to the higher class of life celebrity status bestows. Her personality and own moral values do not mix with the fake, corporate ideals of her agent, and her sponsors are only interested in her as long as she conforms to their expectations. Her life is barely her own and soon she will have to decide what's more important; her existing relationships, her fame and fortune, or perhaps something unexpected in the form of a refreshingly grounded Canterlot Elite who just invited her to breakfast during the Canterlot Music Convention.

A Vinyl Scratch x Octavia story where the two Ponies involved don't instantly form a romantic relationship the moment they meet, and instead allows it to grow over time with good old character development.

All criticism is welcome, and of course some spoilers follow in the comments below so please read cautiously.
Mega thanks go to Cruel September for her fantastic cover art for the story. Go show her lots of love, she's an amazing artist. http://cruelseptember.deviantart.com/

Princess Luna has returned to Equestria and made peace with the conditions that led to her dismissal, but despite a thousand years of progress, ponies still shun the night and seek refuge in the sun. Refusing to allow herself to fall into the same pattern that brought on the fury of Nightmare moon a thousand years earlier, Luna seeks advice in Twilight, and in turn explains to her the true origins of the land of Equestria.

Twilight Sparkle is, of course, a genius. Her insatiable love for books has made her a walking encyclopedia of all things magic. But you can't become truly great in academia just by reading books; Albert Einstein didn't invent the special theory of relativity by reading about it in high school. Well, Twilight has aspirations of true greatness. Her world is full of mysteries that she won't find the answers to in her library, and she's determined to be the one to solve them. And all the while, a villain wielding a brand of deadly, unknown magic is threatening both her friends and the whole of Equestria. What's a unicorn to do?

Being a genius isn't quite enough. Luckily, Twilight is also a scientist.

-----

This is an old story that takes place in the canon circa season two. It involves a slight re-imagining of Twilight to make her more of a scientist than a science fangirl. This doesn't mean she's no longer a cute nerd; if anything, she's more adorkable than ever.

An ancient manuscript written in Middle English, the only surviving artifact from long lost Earth, may hold the true reason for the emergence of Equestria, the very existence of the Conversion Bureaus, and the deepest secret of Princess Celestia herself.

This story is a continuation and expansion of 'The Conversion Bureau: Letters From Home', but it is not necessary to have read that story to enjoy and follow this one.

♥ As Featured On Equestria Daily!

A diplomatic crisis arises between Equestria and the small, poor kingdom of Tarandroland, ancestral home of the reindeer. Celestia and Luna agree that it is time Luna takes a more active hand in foreign relations again, and Luna brings Twilight with her as someone she actually trusts and can talk to. But the mission turns out to be much more than political discussions - if scheming unicorn courtiers, unfriendly surly reindeer, bloodthirsty pirates, ancient sorcery and dangerous monsters weren't enough, our heroines must deal with something old - older than Luna. And is Luna really ready for diplomatic action, will Twilight learn to use a fan properly, and exactly how wrong are Spike's superhero comics about reindeer mythology?

Now has a TV tropes page

It can be said the multiverse is a series of rivers, each one its own reality, all flowing infinitely close to each other, but never touching. When one river receives a sudden influx of energy and overflows its banks, touching another reality in the process, two species must come to terms with their sudden awareness of the other. And as the deeper ramifications of their meeting become apparent, both species must make a choice as one.

While this is a direct sequel to In Duty's Name, it is not required to read it. It is recommended, as it will help you get to know everypony better :)

This is a re-imagining of The Conversion Bureau universe as originally created by Blaze. All Canon characters are (c) Hasbro and Studio B. All Original Characters are (c) to their respective owners

How do you cope when all your friends are dying of old age around you, but you seem not to be growing older at all? Twilight Sparkle tackles this problem for herself the only way she's ever known how: research, and then contacting Princess Celestia for advice. The explanation she gets is nothing like what she could have expected, and it will change Twilight's life forever.

link to dramatis personae

There was nothing left for Spitfire in Cloudsdale, just an uncle who hated her and painful memories of lost loved ones. The Pegasus Search and Rescue Corps offers her a chance to get out of town, see the world, do some good - and one day maybe have a shot at the Guards or the Wonderbolts! She jumps at the opportunity - and six days later, she limps into training camp.

Doesn't matter: she made it. The world can beat her down, but it can't keep her down. The friendships she forms here will get her through everything training has to offer. Will they also see her through the dark clouds on the horizon?

(Rated Teen for violence, language, some suggestive themes)

Robert Parker is a 24 year old ex-web developer living in New York city. In the wake of the conversion movement, he has seemingly lost everything. Haunted by the same nightmare every night, he soon realizes that he must make a choice.

To those unfamiliar with the Conversion Bureau: it is a scenario created by an author named blaze in which Ponies either appear in the human world or have lived beside humans without incident for millennia. One day, in the face of all the damage humanity has done to its world, the ponies offer a solution: undergo conversion to become a pony and allow the world to be inundated with Equestria's influence: thus healing it and bring forth a golden age.

Many different authors have taken many different approaches to this idea, all of them are worth checking out.

http://www.ponychan.net/chan/fic/res/53616.html (The current thread)
http://www.equestriadaily.com/2011/04/conversion-bureau-compilation.html (The compilation post on EQDaily. *NOT UPDATED*)