# @stem_antics on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DPwE701EQ_k
- **Gondola URL:** https://gondola.cc/posts/76866333-stem-antics-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/a652e6b655.jpg
- **Posted:** 2025-10-13T13:36:04.000+00:00
- **Account Owner:** Stem Antics (@stem_antics) — https://gondola.cc/stem_antics

## Caption

We often hear two mind-blowing facts about our universe. Let’s break them down:

⏳ Age
	•	The standard cosmological model (ΛCDM) gives an age of about 13.8 billion years (13.787 ± 0.020 Gyr). 
	•	This comes from measurements of the cosmic microwave background and calculations of cosmic expansion history. 
	•	Some speculative models propose a much older universe (e.g. ~26.7 billion years) but these are not accepted consensus. 

🌌 Size (observable universe)
	•	We can only see part of the universe — this region is called the observable universe. 
	•	Its current diameter is estimated at ~93 billion light-years. 
	•	The radius to the “edge” (comoving distance) is ~46.5 billion light-years. 
	•	Why is the observable size so much bigger than 13.8 billion light-years? Because space itself has expanded. Light that started traveling billions of years ago comes from regions now much farther away. 

#StemAntics #AstronomyFacts #CosmosExplained #UniverseSize #AgeOfTheUniverse #Cosmology #Astrophysics #SpaceTime #BigBangTheory #ObservableUniverse #PhysicsForEveryone #ScienceReels #STEMeducation

## Stats

- **Views:** 1,636
- **Likes:** 16
- **Shares:** 0
- **Comments:** 3

## Credits

No public credits are recorded here. This does not identify who made the post.

## Tags

astronomyfacts, observableuniverse, cosmosexplained, sciencereels, ageoftheuniverse, cosmology, stemeducation, spacetime, physicsforeveryone, bigbangtheory, astrophysics, universesize, stemantics

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