Chapter two: Princess Celestia and Princess Luna.
The two princesses said to raise and lower the sun and moon while ruling the day and night.
Well originally they were the rulers of the human civilization living on the planet.
Their names were actually Tia for Celestia and Lulu for Luna but they changed their names believing they raised and set the sun and moon with their magic.
However thanks to the explosion they were turned into ponies along with many others.
They were actually sisters and they actually died their hair since they were in their early adult age.
When they arrived to the planet Celestia's hair was pink and Luna's hair was blue.
Their hair changed in the explosion along with most of the other ponies though some kept a different kind of version of hair from their human version.
Luna turned into Nightmare moon because of an eclipse that she thought she created but she cast a spell that accidently made her take a new form making her believe she was evil.
Celestia used the elements of harmony that was actually taken from the source of the power in the form of a tree with gems to help people survive as well as help keep the ozone layer up. She actually used a spell and the elements actually gathered magic from when they were taken from the tree thus once they were first drained the magic they absorbed made them magical. She used this magic to seal Nightmare moon in the moon but it drained her of her magic to use the elements then Nightmare moon waited for the magic of the elements to well disappear allowing her to return.
When Nightmare moon returned it was actually just a night that happened to be longer because of the way their world was tilted away from the sun since the world tilts.
Nightmare moon's magic that caused her to change was actually absorbed by the elements turning her back to normal….. Her hair changed to it's new look from the hair she had as a human to the hair she developed in the early times of the explosion. She struggles to get with the time and thus flashes of her mane or hair before her hair/mane changed can be seen as she struggles to catch up with time.
They are seen as immortal and the are thought to have lived longer than a thousand years but the ponies interpretation of time became different than ours so the time Luna was banished was actually one thousand hours.
Also during the time Nightmare moon escaped her imprisonment she sealed Celestia in the sun but when the dawn came which happened to be the time Nightmare moon was turned back to normal then Celestia was freed.
Celestia works during the day and Luna during the night so Celestia sleeps during the night and Luna during the day.
Their clones became principle and vice principle of a school with all grades form grade one up to grade twelve because the scientist can't just make them princesses.