# Quantumaire

> An interactive educational journey from the smallest subatomic particles to the largest structures in the observable universe. Every stop carries a transparent trust badge (Fact, Established Theory, Probable Theory, Speculative).

Quantumaire helps readers build intuition for the scale of the universe by anchoring every object to a single reference: if Earth were a 0.5 mm grain of sand, how big would everything else be?

## English (en)

- [Journey home](https://quantumaire.space/en)
- [About Quantumaire](https://quantumaire.space/en/about) — methodology, trust badges, and editorial stance
- [Glossary](https://quantumaire.space/en/glossary) — every term defined in one place
- [Scale calculator](https://quantumaire.space/en/tools/scale) — type any length and see it shrunk to grain-scale
- [What's in between?](https://quantumaire.space/en/tools/between) — list every stop between two sizes
- [Compare two stops](https://quantumaire.space/en/compare) — pick any two stops and see their scale ratio
- [Topics](https://quantumaire.space/en/topics) — concept pages explaining stars, planets, and black holes

### Topic pages (en)

- [Stars](https://quantumaire.space/en/topics/stars) — The nuclear furnaces of the universe.
- [Planets](https://quantumaire.space/en/topics/planets) — Worlds bound to a star.
- [Black holes](https://quantumaire.space/en/topics/black-holes) — Regions of spacetime nothing can escape.
- [Nebulae](https://quantumaire.space/en/topics/nebulae) — Where stars are born and where they go to die.
- [Moons](https://quantumaire.space/en/topics/moons) — The natural satellites of the planets.
- [The Big Bang](https://quantumaire.space/en/topics/big-bang) — The hot, dense origin of the universe we can see.
- [Supernovae](https://quantumaire.space/en/topics/supernova) — How massive stars die — and what they leave behind.
- [Time](https://quantumaire.space/en/topics/time) — Not as universal as it feels.
- [Distances](https://quantumaire.space/en/topics/distances) — From light-seconds to the cosmic horizon.

### Categories (en)

- [Micro-World](https://quantumaire.space/en/category/micro-world) — Quarks, atoms, and molecules — the building blocks underneath everything you can see or touch.
- [Human Mind](https://quantumaire.space/en/category/human-mind) — Documented oddities of how a single brain — and a single body — can house more than one self.
- [Ancient History](https://quantumaire.space/en/category/ancient-history) — Monuments and mysteries whose construction still resists complete explanation.
- [Cosmos](https://quantumaire.space/en/category/cosmos) — Galaxies, stars, neutron-dense corpses, and the dark side of the universe — the largest scales we can observe.

### Stops (en)

- [Quark](https://quantumaire.space/en/stop/quark) — The smallest known building block of matter. (size 0.00100 fm) [FACT]
- [Proton](https://quantumaire.space/en/stop/proton) — Three quarks bound into one of nature's most stable forms. (size 1.00 fm) [FACT]
- [Atom](https://quantumaire.space/en/stop/atom) — The smallest piece of any chemical element. (size 100 pm) [FACT]
- [DNA](https://quantumaire.space/en/stop/dna) — The instruction book that builds you — and most of every other living thing. (size 2.00 nm) [FACT]
- [Virus](https://quantumaire.space/en/stop/virus) — Strands of code wrapped in protein. (size 100 nm) [FACT]
- [Bacterium](https://quantumaire.space/en/stop/bacterium) — Single-celled life, no nucleus required. (size 2.00 µm) [FACT]
- [Cell](https://quantumaire.space/en/stop/cell) — The smallest unit of life. (size 10.0 µm) [FACT]
- [Human](https://quantumaire.space/en/stop/human) — Roughly the geometric mean of the universe. (size 1.70 m) [FACT]
- [Dissociative Identity Disorder](https://quantumaire.space/en/stop/mpd) — When the same brain hosts more than one self. [ESTABLISHED_THEORY]
- [The Great Pyramid](https://quantumaire.space/en/stop/pyramid) — 139 metres of limestone we still can't fully explain. (size 139 m) [PROBABLE_THEORY]
- [Earth](https://quantumaire.space/en/stop/earth) — Our reference grain of sand. (size 12,742 km; temperature 288 K (15 °C)) [FACT]
- [The Moon](https://quantumaire.space/en/stop/moon) — Earth's only natural satellite — locked to us forever. (size 3,475 km; distance from Earth 384,400 km; temperature 250 K (-23 °C)) [FACT]
- [Jupiter](https://quantumaire.space/en/stop/jupiter) — The Solar System's largest planet — a failed star, almost. (size 139,820 km; distance from Earth 779 million km; temperature 165 K (-108 °C)) [FACT]
- [The Sun](https://quantumaire.space/en/stop/sun) — A self-sustaining fusion engine at the heart of our system. (size 1.39 million km; distance from Earth 150 million km; temperature 5,800 K (≈ 5,500 °C)) [FACT]
- [Proxima Centauri](https://quantumaire.space/en/stop/proxima_centauri) — The closest known star to the Sun — and still impossibly far. (size 214,000 km; distance from Earth 4.24 ly; temperature 3,000 K (≈ 2,700 °C)) [FACT]
- [UY Scuti](https://quantumaire.space/en/stop/uy_scuti) — If it replaced the Sun, it would swallow Jupiter. (size 2.40 billion km; distance from Earth 9,502 ly; temperature 3,400 K (≈ 3,100 °C)) [FACT]
- [Neutron Star](https://quantumaire.space/en/stop/neutron_star) — A city-sized star with the mass of a sun. (size 20 km; temperature 600,000 K (≈ 599,700 °C)) [FACT]
- [Sagittarius A*](https://quantumaire.space/en/stop/supermassive_black_hole) — The supermassive black hole at the heart of our galaxy — and its more extreme cousins. (size 24.0 million km; distance from Earth 26,002 ly) [FACT]
- [TON 618](https://quantumaire.space/en/stop/ton_618) — An ultramassive quasar — one of the largest black holes ever measured. (size 195 billion km; distance from Earth 10.4 billion ly) [PROBABLE_THEORY]
- [Phoenix-A](https://quantumaire.space/en/stop/phoenix_a) — At the heart of the Phoenix Cluster — among the most massive known black holes. (size 150 billion km; distance from Earth 5.70 billion ly) [PROBABLE_THEORY]
- [The Solar System](https://quantumaire.space/en/stop/solar_system) — One star and everything held in its gravity. (size 15.0 billion km; distance from Earth 1.59 ly) [FACT]
- [Voyager 1](https://quantumaire.space/en/stop/voyager1) — The farthest human-made object — and still calling home. (distance from Earth 25.0 billion km) [FACT]
- [Light-Year](https://quantumaire.space/en/stop/light_year) — The distance a single beam of light covers in one year. (size 1.00 ly) [FACT]
- [Milky Way](https://quantumaire.space/en/stop/milky_way) — A spiral of roughly 200 billion stars — including ours. (size 105,700 ly; distance from Earth 52,850 ly) [FACT]
- [Andromeda](https://quantumaire.space/en/stop/andromeda) — Our nearest large galactic neighbour — and our future collision partner. (size 211,400 ly; distance from Earth 2.51 million ly) [FACT]
- [Virgo Cluster](https://quantumaire.space/en/stop/galaxy_cluster) — Our local galaxy cluster — one of thousands in the universe. (size 15.0 million ly; distance from Earth 53.9 million ly) [FACT]
- [Laniakea Supercluster](https://quantumaire.space/en/stop/laniakea_supercluster) — The supercluster of galaxy clusters our Milky Way lives inside. (size 529 million ly; distance from Earth 317 million ly) [ESTABLISHED_THEORY]
- [Dark Matter](https://quantumaire.space/en/stop/dark_matter) — An invisible wind that holds galaxies together. [PROBABLE_THEORY]
- [Dark Energy](https://quantumaire.space/en/stop/dark_energy) — Whatever is pulling the universe apart, faster and faster. [SPECULATIVE]
- [Observable Universe](https://quantumaire.space/en/stop/observable_universe) — The 93-billion-light-year sphere we can, in principle, see. (size 93.0 billion ly; distance from Earth 46.5 billion ly) [ESTABLISHED_THEORY]

## Serbian (sr)

- [Journey home](https://quantumaire.space/sr)
- [About Quantumaire](https://quantumaire.space/sr/about) — methodology, trust badges, and editorial stance
- [Glossary](https://quantumaire.space/sr/glossary) — every term defined in one place
- [Scale calculator](https://quantumaire.space/sr/tools/scale) — type any length and see it shrunk to grain-scale
- [What's in between?](https://quantumaire.space/sr/tools/between) — list every stop between two sizes
- [Compare two stops](https://quantumaire.space/sr/compare) — pick any two stops and see their scale ratio
- [Topics](https://quantumaire.space/sr/topics) — concept pages explaining stars, planets, and black holes

### Topic pages (sr)

- [Zvezde](https://quantumaire.space/sr/topics/stars) — Nuklearne peći svemira.
- [Planete](https://quantumaire.space/sr/topics/planets) — Svetovi vezani za zvezdu.
- [Crne rupe](https://quantumaire.space/sr/topics/black-holes) — Oblasti prostor-vremena iz kojih ništa ne može pobeći.
- [Magline](https://quantumaire.space/sr/topics/nebulae) — Tamo gde se zvezde rađaju i gde idu da umru.
- [Meseci](https://quantumaire.space/sr/topics/moons) — Prirodni sateliti planeta.
- [Veliki prasak](https://quantumaire.space/sr/topics/big-bang) — Vrelo, gusto poreklo vidljivog svemira.
- [Supernove](https://quantumaire.space/sr/topics/supernova) — Kako masivne zvezde umiru — i šta ostavljaju za sobom.
- [Vreme](https://quantumaire.space/sr/topics/time) — Ne tako univerzalno kao što izgleda.
- [Udaljenosti](https://quantumaire.space/sr/topics/distances) — Od svetlosnih sekundi do kosmičkog horizonta.

### Categories (sr)

- [Mikrosvet](https://quantumaire.space/sr/category/micro-world) — Kvarkovi, atomi i molekuli — gradivni blokovi ispod svega što možete videti ili dotaći.
- [Ljudski um](https://quantumaire.space/sr/category/human-mind) — Dokumentovane neobičnosti kako jedan mozak — i jedno telo — može ugostiti više od jednog ja.
- [Drevna istorija](https://quantumaire.space/sr/category/ancient-history) — Spomenici i misterije čija gradnja se i dalje opire potpunom objašnjenju.
- [Kosmos](https://quantumaire.space/sr/category/cosmos) — Galaksije, zvezde, neutronski gusti leševi i tamna strana svemira — najveće razmere koje možemo posmatrati.

### Stops (sr)

- [Kvark](https://quantumaire.space/sr/stop/quark) — Najmanji poznati gradivni blok materije. (size 0.00100 fm) [FACT]
- [Proton](https://quantumaire.space/sr/stop/proton) — Tri kvarka spojena u jedan od najstabilnijih oblika u prirodi. (size 1.00 fm) [FACT]
- [Atom](https://quantumaire.space/sr/stop/atom) — Najmanji deo bilo kog hemijskog elementa. (size 100 pm) [FACT]
- [DNK](https://quantumaire.space/sr/stop/dna) — Knjiga uputstava koja vas pravi — i većinu svega živog. (size 2.00 nm) [FACT]
- [Virus](https://quantumaire.space/sr/stop/virus) — Niti koda umotane u protein. (size 100 nm) [FACT]
- [Bakterija](https://quantumaire.space/sr/stop/bacterium) — Jednoćelijski život, bez jedra. (size 2.00 µm) [FACT]
- [Ćelija](https://quantumaire.space/sr/stop/cell) — Najmanja jedinica života. (size 10.0 µm) [FACT]
- [Čovek](https://quantumaire.space/sr/stop/human) — Otprilike geometrijska sredina svemira. (size 1.70 m) [FACT]
- [Disocijativni poremećaj identiteta](https://quantumaire.space/sr/stop/mpd) — Kada isti mozak ugošćuje više od jednog ja. [ESTABLISHED_THEORY]
- [Velika piramida](https://quantumaire.space/sr/stop/pyramid) — 139 metara krečnjaka koje još uvek ne možemo u potpunosti objasniti. (size 139 m) [PROBABLE_THEORY]
- [Zemlja](https://quantumaire.space/sr/stop/earth) — Naše referentno zrno peska. (size 12,742 km; temperature 288 K (15 °C)) [FACT]
- [Mesec](https://quantumaire.space/sr/stop/moon) — Jedini Zemljin prirodni satelit — zaključan za nas zauvek. (size 3,475 km; distance from Earth 384,400 km; temperature 250 K (-23 °C)) [FACT]
- [Jupiter](https://quantumaire.space/sr/stop/jupiter) — Najveća planeta Sunčevog sistema — skoro promašena zvezda. (size 139,820 km; distance from Earth 779 million km; temperature 165 K (-108 °C)) [FACT]
- [Sunce](https://quantumaire.space/sr/stop/sun) — Samoodrživi fuzioni motor u srcu našeg sistema. (size 1.39 million km; distance from Earth 150 million km; temperature 5,800 K (≈ 5,500 °C)) [FACT]
- [Proksima Kentaur](https://quantumaire.space/sr/stop/proxima_centauri) — Najbliža poznata zvezda Suncu — i dalje nemoguće daleka. (size 214,000 km; distance from Earth 4.24 ly; temperature 3,000 K (≈ 2,700 °C)) [FACT]
- [UY Scuti](https://quantumaire.space/sr/stop/uy_scuti) — Kada bi zamenila Sunce, progutala bi Jupiter. (size 2.40 billion km; distance from Earth 9,502 ly; temperature 3,400 K (≈ 3,100 °C)) [FACT]
- [Neutronska zvezda](https://quantumaire.space/sr/stop/neutron_star) — Zvezda veličine grada sa masom Sunca. (size 20 km; temperature 600,000 K (≈ 599,700 °C)) [FACT]
- [Sagittarius A*](https://quantumaire.space/sr/stop/supermassive_black_hole) — Supermasivna crna rupa u srcu naše galaksije — i njene ekstremnije rođake. (size 24.0 million km; distance from Earth 26,002 ly) [FACT]
- [TON 618](https://quantumaire.space/sr/stop/ton_618) — Ultramasivni kvazar — jedna od najvećih ikada izmerenih crnih rupa. (size 195 billion km; distance from Earth 10.4 billion ly) [PROBABLE_THEORY]
- [Phoenix-A](https://quantumaire.space/sr/stop/phoenix_a) — U srcu Phoenix jata — među najmasivnijim poznatim crnim rupama. (size 150 billion km; distance from Earth 5.70 billion ly) [PROBABLE_THEORY]
- [Sunčev sistem](https://quantumaire.space/sr/stop/solar_system) — Jedna zvezda i sve što drži u svojoj gravitaciji. (size 15.0 billion km; distance from Earth 1.59 ly) [FACT]
- [Voyager 1](https://quantumaire.space/sr/stop/voyager1) — Najdalji objekat koji je čovek napravio — i još uvek se javlja. (distance from Earth 25.0 billion km) [FACT]
- [Svetlosna godina](https://quantumaire.space/sr/stop/light_year) — Rastojanje koje svetlost pređe za jednu godinu. (size 1.00 ly) [FACT]
- [Mlečni put](https://quantumaire.space/sr/stop/milky_way) — Spirala od oko 200 milijardi zvezda — uključujući našu. (size 105,700 ly; distance from Earth 52,850 ly) [FACT]
- [Andromeda](https://quantumaire.space/sr/stop/andromeda) — Naš najbliži veliki galaktički sused — i naš budući partner u sudaru. (size 211,400 ly; distance from Earth 2.51 million ly) [FACT]
- [Virgo jato](https://quantumaire.space/sr/stop/galaxy_cluster) — Naše lokalno galaktičko jato — jedno od hiljada u svemiru. (size 15.0 million ly; distance from Earth 53.9 million ly) [FACT]
- [Laniakea superjato](https://quantumaire.space/sr/stop/laniakea_supercluster) — Superjato galaktičkih jata u kome se nalazi naš Mlečni put. (size 529 million ly; distance from Earth 317 million ly) [ESTABLISHED_THEORY]
- [Tamna materija](https://quantumaire.space/sr/stop/dark_matter) — Nevidljivi vetar koji drži galaksije na okupu. [PROBABLE_THEORY]
- [Tamna energija](https://quantumaire.space/sr/stop/dark_energy) — Šta god to bilo što razvlači svemir — sve brže i brže. [SPECULATIVE]
- [Vidljivi svemir](https://quantumaire.space/sr/stop/observable_universe) — Sfera od 93 milijarde svetlosnih godina koju, u principu, možemo videti. (size 93.0 billion ly; distance from Earth 46.5 billion ly) [ESTABLISHED_THEORY]

## Trust badges

- **Fact** — directly measured or observed.
- **Established theory** — well-tested framework that fits the evidence.
- **Probable theory** — best current explanation, still being refined.
- **Speculative** — idea worth taking seriously, but not yet proven.

## Optional

- [Full text](https://quantumaire.space/llms-full.txt) — every stop's complete body, narrative, key facts, and sources in both locales
- [Sitemap](https://quantumaire.space/sitemap.xml)
- [Robots](https://quantumaire.space/robots.txt)