Astronomy_Nerd
Fandoms
Recent works
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The Cycle of Bloom and Decay Oneshots by Astronomy_Nerd
Fandoms: Original Work, The Cycle of Bloom and Decay - Original Work
04 Feb 2026
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Summary
Oneshots for my original story "The Cycle of Bloom and Decay". Mostly made up of Flashfictionfriday prompts, but some of them are just things I did for fun. Updates infrequently.
For more context, read the actual longer story pls pls pls
Series
- Language:
- English
- Words:
- 189
- Chapters:
- 1/?
- Hits:
- 0
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On Earth 4218 by Astronomy_Nerd
Fandoms: Spider-Man: Spider-Verse (Sony Animated Movies), Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types
31 Jan 2026
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Summary
In one universe, Miles Morales is Spiderman.
In another universe, Miles Morales is the Prowler.
In this universe, the Prowler is not alone.
Welcome to Earth 4218.
A shellcrime universe
____________While Michelangelo and his brothers try to start a new life after escaping their father, Baron Draxum, Mikey and Miles become friends and find themselves on opposing sides on the battlefield to their unbeknown
*Reupload of "On Earth 4218" because I lost my whole Ao3-Account and had to create a new one.*
Series
- Part 1 of On Earth 4218 and beyond
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The Cycle of Bloom and Decay by Astronomy_Nerd
Fandoms: Original Work, The Cycle Of Bloom and Decay – Original Work
01 Jan 2026
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Summary
Lael Solano is the soulmate of a god.
At least, that's what the priesthood in his hometown of Cielo Santo says.
Arki, god of fertility, has sought out the same soul, his soul, as a lover for tens of thousands of years, reincarnation after reincarnation.Despite his doubts and fears about his own feelings about Arki, Lael is ready to oblige with said demands of destiny.
However, not everything is as it seems because Arki's past is coming to get both of them.
Series
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Life's alright in Devil Town by Astronomy_Nerd for nighttime_rain
Fandoms: Batman - All Media Types, Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Teenage Mutant Ninja Turtles - All Media Types, Batman (Comics), Batman and Robin (Comics)
27 Oct 2025
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Summary
Sharing a common goal of eliminating humanity, Talia Al Ghul and Baron Draxum decide to arrange a marriage between their sons, Michelangelo and Damian.
Finding themselves in an impossible situation, Mikey and Damian try to navigate this union they've been thrust into and slowly become friends.
(Aka, a platonic arranged marriage AU between Damian Wayne and Mikey from ROTTMNT, no, don't ask me about the whys, I don't know either.)
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Summary
After the segyein drag Luka out of the rubble, he tries to live with love. Here's what it looks like from the outside.
Recent series
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The Cycle of Bloom and Decay - Original Universe by Astronomy_Nerd
Fandom Original Work, The Cycle of Bloom and Decay - Original Work, The Cycle Of Bloom and Decay – Original Work
04 Feb 2026
- Words:
- 22,260
- Works:
- 2
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On Earth 4218 and beyond by Astronomy_Nerd, Astronomynerd, bolillo0quemado
Fandom Rise of the Teenage Mutant Ninja Turtles (Cartoon 2018), Spider-Man: Spider-Verse (Sony Animated Movies), Teenage Mutant Ninja Turtles - All Media Types
31 Jan 2026
Summary
"Earth 4218 and beyond" is a fanfic series which started out as a shellshocked fanfic and then escalated into a whole multiverse of fanfics exploring stories established in my shellcrime fanfic „On Earth 4218“
On Earth 4218: A fanfic about 4218 Mikey and Miles G. Morales and the story of how they got together. (Short note: The 4218 Turtles were raised by Draxum instead of Splinter, so they're a bit more... amoral.)
Hummingbird (stay on, stay on with me): The story of how 1618 Mikey and Miles (basicly regular Mikey and Miles) end up after their own version of Across the Spiderverse in a 4218 universe timeline where things went very wrong for Miles G. and the 4218 Turtles.
My Boy Builds Coffins: A story about Donnie in a rarepair with Keno, a minor character from the ROTTMNT comics, also deals a bit more with the aftermath of the Krang Invasion in this universe.
- Words:
- 294,598
- Works:
- 6
- Bookmarks:
- 12
Recent bookmarks
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Summary
M11SA. The model name etched onto her shoulder, with her fingers —whirring— touching the mirror. It was cold to the touch. She traces it, the endearing weight behind every action, enjoying the motion. Her fingers lock up, stifling, as she pulls back: that before she acts,
“Mizi” Her creator calls behind her.
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In another timeline, Sua lives but Mizi doesn’t. Despite so, Sua remakes her. A robot. Metallic. Hers. M11SA becomes Mizi. To a detrimental degree, as love and grief goes
(AKA Sua copes in the worst way possible by robotising Mizi but robot Mizi likes it so)
Bookmarked by Astronomy_Nerd
09 Mar 2026
Bookmarker's Notes
Deliciously disturbing. More please <333
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I don’t love you like I loved you yesterday by Chibassy
Fandoms: Alien Stage (Web Series)
12 Jan 2026
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Summary
Yet it wasn’t quite the love most humans would call such. Till knew that now, seeing the others in the Rebellion; the ones unburdened by Seygeins’ teachings and those dictionary definitions of love, they made them repeat in childhood. To Love: To cooperate, mate and provide an offspring, to further your generations.
Till had wondered why his love was different.
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An introspection of post-canon Till in the hc of him as aro/ace spectrum. On the nature of love, loving and being loved through that. And Ivan.
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Summary
Hyuna focused on making sure Hyunwoo lived first. So when Hyunwoo smiled, it brought her to smile too. Hyuna had to learn to walk first, babble syllables first, be applauded lightly by the assistant before they plunged her into the tube— all first.
Then Hyunwoo could trace her guided steps after.
Hyuna was the eldest. She strived for such, addicted to the feelings it gave her when Hyunwoo followed, came over and hugged her for the first time.
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A character study of Hyuna since birth, filling in what her backstory with Phan could be, and the way that altered her role in relationships forever.
The way a vanished sibling hurts.
(AKA. Eldest Sister Syndrome Hyuna with her relations with Hyunwoo and Luka pre-canon)
Bookmarked by Astronomy_Nerd
03 Mar 2026
Bookmarker's Notes
Ughhhh, Hyuna, my poor girl. We need more fics expanding on her backstory aghhhhhhh
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Summary
'A letter is a soul, so faithful an echo of the speaking voice that to the sensitive it is among the richest treasures of love.'
- Honoré de Balzac
Vel, Cinta and the documents, messages and legacies that they leave behind.
OR
A love story through the archives.
- Language:
- English
- Words:
- 4,984
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 9
- Kudos:
- 45
- Bookmarks:
- 8
- Hits:
- 371
Bookmarked by Astronomy_Nerd
23 Feb 2026
Bookmarker's Notes
Oh god, absolutely heartbreaking 10/10 Andor lesbians make me sick Cinta deserved to live
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i'm just having fun on the stage in my heels by Anonymous
Fandoms: Alien Stage (Web Series)
26 Jan 2026
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Summary
Hyuna gets it. The girl had a pretty face and an even prettier smile, and she took gentle care of those who flocked to her in the guise of some kind of pseudo big sister. Her presence under the spotlight was a sharp contrast to Luka, who the other kids avoided like the dark.
Hia. That was her name.
Hyuna reminisces about the strange girl who was in her graduating class.
- Language:
- English
- Words:
- 4,368
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 6
- Kudos:
- 12
- Bookmarks:
- 2
- Hits:
- 31
Bookmarked by Astronomy_Nerd
26 Jan 2026
Bookmarker's Notes
Truly, what a rarepair to behold. I adore this.