CANCELLED

After her disappearance three months prior, Rarity finds her way back home. Of course, this raises several important questions. Where was she? What did she do? Why is she wearing bloodstained armour? And who is this "Wanderer" she traveled with?

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

Now that Earth and Equestria have made contact, lots of ponies dream of visiting Earth, and while tourist visas are hard to come by, a few lucky students each year can participate in a foreign-exchange program.

Silver Glow is one of those lucky ponies.

She thought she was prepared for Earth, but can you ever be fully prepared for a truly foreign exchange?

Link to the dramaturge