Some things in the cosmos are so large the human mind simply cannot hold them. We climb from a dying star wide enough to bury Saturn's orbit, through galaxies that dwarf the entire Milky Way and black holes heavier than galaxies themselves, all the way up to the total weight of everything we can see, and the unsettling realization that even that colossal number is almost nothing. Settle in for a journey up the scale of the universe, one impossible object at a time.

Sources:

16. WOH G64 — https://www.eso.org/public/news/eso2417/

15. Mu Cephei (The Garnet Star) — https://www.star-facts.com/mu-cephei/

14. NML Cygni — https://www.star-facts.com/nml-cygni/

13. Westerlund 1 — https://earthsky.org/space/westerlund...

12. Sagittarius B2 — https://www.thedrinksbusiness.com/202...

11. UGC 2885 (Rubin's Galaxy) — https://www.sci.news/astronomy/rubins...

10. Malin 1 — https://www.aanda.org/articles/aa/ful...

9. A2261-BCG — https://www.nasa.gov/image-article/hu...

8. M87's Black Hole (Powehi) — https://science.nasa.gov/resource/fir...

7. NGC 4889's Black Hole — https://www.iflscience.com/quiet-gala...

6. RX J1347.5-1145 — https://www.aanda.org/articles/aa/abs...

5. Abell 1689 — https://apod.nasa.gov/apod/ap130917.html

4. The BOSS Great Wall — https://www.sciencealert.com/astronom...

3. The Pisces-Cetus Supercluster Complex — https://www.ebsco.com/research-starte...

2. Holmberg 15A — https://arxiv.org/abs/1907.10608

1. The Total Mass of the Observable Universe — https://www.astronomy.com/science/how...

#Powehi #Holmberg15A