I think I have a theory as to why celestia can only move the sun.
The sun in equestria may actually be a star. But just because celestia can raise one star doesn't mean celestia can control all stars. What if celestia is only capable of moving only one star, which is the sun. Just like how luna can only move one moon.
It's possible that what the two sisters raise depends on what magic they have. That means they can only move the sun and the moon and nothing else.

As for the stars that aid nightmare moon's return, I don't think they're actual stars. Think of it this way, if stars are burning orb like our world then bringing them to the moon would have just burnt the moon. Yet if they're just normal glowing orbs of light then bringing it to the moon would've done nothing. It was magic that released nightmare moon. So what if the stars that aid in her escape weren't actual stars but rather stars made of magic.
Someone could've used magic to create four stars that would help release nightmare moon. Someone like the tree of harmony.
Now this can go a few ways.
1. The tree of harmony could've made those stars itself.
OR
2. Based on the brony notion's theory, all the tree of harmony had to do was move the stars that imprisoned grogar.
Or maybe
3. Gusty never vanished grogar to the stars. What if she turned him into stars? Grogar could have very well moved himself or moved with the help of the tree of harmony and release nightmare moon.

Who knows?


Can she open it herself she controls the Stars if she can control the star she can probably look out of it as I mean is the Moon if you can look at all the moons but I see to control them which can also control the Stars so it's probably is herself there's an answer


I'm kind of leading to a third sister or crazy cousin...But maybe Luna herself set herself free


I think twilight controls the stars or maybe Luna but twilight has a star on her cutie mark soo must be twilight


I’m Sad Mlp Ended I Liked Rainbow Dash's Old Hair Better ):


I think twilight sparkle controls the stars


DEBUNK

This theory is not possible, tree of harmony did not have elements at that time.
Tree used elements to send her on the moon, so tree of harmony would need them to bring Nightmare back.

the tree still had power without the elements, and it could still orchestrate events to give the elements new bearers.<br>also, the elements were needed to bring LUNA back, but Nightmare Moon returned without them.

the tree still had power without the elements, and it could still orchestrate events to give the elements new bearers.
also, the elements were needed to bring LUNA back, but Nightmare Moon returned without them.


Who's grogar? <br>I haven't seen the new season yet

Who's grogar?
I haven't seen the new season yet


What if the tree corse the star?! 😱😱😱😱😱😱😱😱


Tromba: I think I was a little too crazy & hysterical & crazy & hysterical & crazy & hysterical & crazy & hysterical & crazy & hysterical & crazy & hysterical... (Fades out as he crashes into the stars)


And again Celestia send Luna away so Celestia has to free or maybe another villian


I THINK TWILIGHT DID IT SHE  CUTYMARK IS A STAR


Is it trixie?
Or daybreaker?
Or ...................luna?


I actually made an oc that will control the stars so maybe my oc lol


and also it must be twilight remember she has a star cutie mark and remember her cornation huh i am mlp biggest fan so i noticed


Celestia releasing nightmare cuz she know that twilight and her frends will deafeat her


Idk maybe there's a star alicorn out there


princess luna because she new about the mane 6


Soo I have some ponies in mind:
1. Celestia's and Luna's parents. We don't know what they can do, how they look, where they are and if they are even alive. But they may understood somehow  that Celestia banished her sister to the moon and they couldn't live with that thought anymore or Celestia  told them somehow and everyday she was telling them how awful she felt, so her parents helped her, after Celestia told them about a really powerful unicorn in her class(Twilight). Maybe they waited until Twilight reached at a very good magic level and then they would free Luna.
2. Starlight. Although I don't really know, cause at that time I think that starlight was trying to find a village to rule and studied magic at the same time (Flashback 1 when Starlight said she knew Maud cause she asked her something when she was trying to find the Village, Flashback 2 when she she said to Twilight: "Ugh I studied that spell for years!"). She could, but I don't know. Something isn't right with the sentence: Starlight is the one how moved the stars. 🤔
3. Discord. With his magic, he can do anything. And, back to his old self, we could easily say that Discord want Equestria to suffer. He tried years ago, but he didnt make it. Now that he knows about Nightmare moon and that she wasnt going to be stoped, cause she was powerfull, he could release her and then team up with her to destroy and rule Equestria. Of course, after accomplushing that, he would destroy Nightmare Moon and he would rule Equestria all by him self.
4. Luna. Yes she was the prisoner, but we dont know if Celestia used only one spell to banish Luna to the moon. She may send her there with her magic, but she knew that she would come back if she let her free with no barriers. She may used 2 spells, one to send her to the moon and one to make Nightmare Moon not being able to use her magic. Of course that spell lasted only for a thousand years and then Luna escaped at her one. Day by day she pulled the stars closer and closer, cause the spell was slowly becoming powerless, and the moment that the spell broke she escaped ( I hope you can understand what I mean. Sorry my native language isn't English 😄).
 Starsswirl couldn't preformed any spells because he was at Limbo. And Twilight couldn't ether, we know why. There are no other ponies that could done such a thing....

SUNSET. Sunset could have done that too. She maybe returned to Equestria, nopony noticed her, and rescued Luna for revenge! 😲

Wow I didn't know that I could say all those thing😂. I know its a lot but that's on my mind. Oh boi😂


I had another idea that even the Tree of Harmony is just a piece in the puzzle .What if Starswirl wasnt banished to limbo at the time of Lunas banishment (or he felt her bannishment as he felt the destruction of the tree )and celestia never planned for her to leave the Moon just like Gusty the great intended to never free Grogar but Starswirl saw(/felt) that Luna being away hurt Celestia deeply and could prevent her from doing her duty and Enchantet the Tree of harmony .Here i have to make a short intermission and explain a detail : In this theorie one of the Purposes of the tree when it was planted was to aid STARSwirl because the Stars inherited a ancient nearly uncontrollable magic  in keeping the stars in their place and take over when he became to old to do it. The Trees enchantment works like a simple code in a programm : it searches for new ponys for the elements because luna and celestia couldnt always keep them safe and the only thing he added was a simple if or rather a simple when : If/when the tree found suitable ponys he should free nightmare moon so the elements could reform her to once again help celestia


it cuold be that evry star has somepony or something controling them


Im just saying wut if Nightmaremoon herself freed herself!? Im no scientist who constantly watch MLP when it already ended but this make sense right? On the tree of harmony Luna's cutiemark has a star, and what is visible in night?
THE STARS so if this is true look at the video called My Immortal ,i saw that there was a portal to Equestria and Luna came throught but in reality
Nightmaremoon was freed. Like


The brony nation APPLEJACK is a unicorn in the ticket master episode


So wait does that mean she names the baby ponies because she has visions of the future. 🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔🤔


This is kinda a stupid theory but what if it was sunset shimmer,  although I really like mlp i haven't watched all the episodes so this probably isn't true


I know it was twilelight SPARKOL she has The Star on her leg so ya


THAT WAS LUNA NOT CELESTIA !!!!!!!!!!!!!


Welp my discord theory is thrown  out the window


Why does Lauren have a cat as profile???
Aren’t pony’s more important than cat’s?
Ok no effence to cats, cats are cute?
I wonder if this is a fake Lauren 😯


Who crotrol the star? Who have a star in its name? Hehe


Hey bn I know all the elements of disharmony


WHAT IS STARSWIRLS CUTIE MARK I GOTTA KNOW


ze stars were controled bu gravitational forces!


In the episode where the main 6 tern into breezys why does pinkies cutie mark disappear


WHAT THE STAR WELL IT MORE LIKE THE DREAM


Twilight’s cutiemarks are stars and star


It’s been a few days since April fools  no thanks


Flurry the princesses of what do you know


Since  people  have oc  ponies do ponies have oc humans ? Is any one with me?


(I am putting a comment that I put on the last video as it seems you didn't see it I assume)[if you have read this already then you can just ignore this]
Brony Notion hope that you see this comment ,these are my thoughts about the dream waking team ,I can only thought up of some small conclusion while can't really thought of a big conclusion , so hope that you can do a big conclusion with your analytical skill . ( I don't comment much so my wording on some stuff might sound weird , also if my wording does offend you in anyway I aplogize ,and if anyone is reading this is wondering I am a fulttershy type of a guy)

Conclusion-C
Theory-T

Celestia draged Luna to Starlight's dream (royal problem)
Luna can put multiple ponies in one dream but the more ponies the more difficult it is to control(does prinesses dream of magic sheep)
 C : there can be more then 2 real ponies mind in the same "main dream"

Luna can create semi sentient creature's that can effect the dream realm like the Tantabus (does prinesses dream of magic sheep)
Starlight explains that her own magic is tied to her emotions—the stronger she feels, the stronger her magic (all bottled up)
T : Tantabus was created to do negative intent like giving nightmare so it had a possibility of it going rouge to seek out more victims when it has collected enough let say  corresponding "psychic power" which is Negetive like fear/guilt and so on cause it is it's intital purpose like making an AI and let it learn and grow toward it's purpose , so making a      being that is similar to Tantabus that is kind and want to help ponies in their dreams will have a very low chance of going rouge
C : so Luna can also create other semi sentient creature that is good to dive into other ponies dream to help them , or help the dream walking team to visit other ponies dream

complicated spells like moving the sun can be cast by multiple magically gifted unicorn but it is very difficult and magic draining for those who's talent is not spec on it (horse play)
T : Tantabus was able to hold it's own form by absorbing it's corrisponding "pcychic power" , so with "nice Tentabus" can also have power similar abilities to Tantabus when absorbed       enough corresponding  "psychic power" which is positive like happiness
C : the dream walking team can funtion without Luna's present ,but it would require multiple gifted unicorn to perform dream walking spell or find a successor to Luna and have he/she           perform said spell or have the "good Tantabus " perform these spell

everyone in the share dream can use their magic and imagination and you can do and be anything in a dream and even becoming an Alicorn (does prinecesses dream of magic sheep)
when Luna have Celestia's cutie mark or magic ,she can't do anything in Starlight's dream while knowing she can use her imagination [this could be debunk by saying Luna have some bad imagination but I think is highly unlikely] (royal problem)
T/C : creature can only use their magic or imagination in their "main dream" but when they are moved to another creature "main dream" they can't use their magic or imagination , by        fusing two "main dream" to a  "shared dream" so both creature can use their magic or imagination , and Luna's main power in the dream realm is the ability to make "shared  dream"

not so related stuff :

all/some magic spells are based on incantation (magical mystery cure , uncommon bond , shadow play)
Twilight teaches magic to Swettie Bell step by step (twilight time)
Starlight explains that her own magic is tied to her emotions—the stronger she feels, the stronger her magic (all bottled up)
T : when casting a spell an unicorns place all the the incantation or steps in their mind to cast it but if you think it that way it would take too long and we can clearly see some spells        can just be cast in a fly even powerful one that is seen in Shadow play , so I recon that spells' effects are based on ones intent (which can explain incantations on scrolls) and    imagination while emotion emplifies the power
C : all magic could be said to be their own imagination , if casting magic is almost the same as imagining it to happen


Wat if the stars don’t move and In the next my little pony flry hart is the controller of the stars


Twilight might because of her cutie mark plz give shout out


“You just can’t argue with the creator” “bet.” K then

Wasn’t rainbow dash the deliverer Of the rainboom? I haven’t watched the series in a while so if I’m wrong yeah


but its just me all Item are conected to harmony

She knows the day of release of <b>**********</b>

She knows the day of release of ************


Look maybe it’s because the gravity I don’t know I don’t think so because I was going to do animations that pony control the stars I was going to do that but I’m still thinking about it how to do all the international that stuff you know so this is a Coincidence OK just saying


Hi the brony nation!<br>I want to asking you, how old are you? If you can't to tell me I'm totally fine with that.

Hi the brony nation!
I want to asking you, how old are you? If you can't to tell me I'm totally fine with that.

You know,  I was so much happy when I read what you write.
I really happy because of you say all that.
I happy to see I'm not the only one who still like mlp.
💙💙💙

Oh.
I think you'll survive 😉
You always can say "I want to stay young a lot time I could "

@Bright Light I turn 14 this year, which makes it worse for me

I'm not exactly 13, something close to that age. And I'm really lovvveee mlp. A lot of people always say I'm to big for that, but I so love it i just CAN'T stop