For hundreds of years, ponykind had wondered if we were alone. The search for other planets besides our own was long and arduous, but our search eventually turned up results in the form of a mirror which transported the user to an alternate Equestria populated by a species known as 'humans.'
Intrigued by this, scientists in Equestria began exploring the possibility that there were other universes out there; instead of an alternate version of our own. Many decades passed, but nothing new was discovered.
Until, one day, we were contacted.