How Big is The Universe?

Описание: How vast is the universe really?

In this video, we explore the true scale of the cosmos, starting from Earth and moving outward step by step: the Solar System, the Milky Way galaxy, galaxy clusters, the cosmic web, and finally the observable universe.

The observable universe spans approximately 93 billion light-years in diameter. It contains hundreds of billions possibly trillions of galaxies, each filled with billions of stars and countless planets. But that may only be the portion we can see.

Chapters:
00:00 — THE QUESTION THAT NEVER FITS IN A NUMBER
01:00 — EARTH, THE SUN, AND THE LIMITS OF INTUITION
01:55 — THE SOLAR SYSTEM IS MOSTLY NOTHING
03:11 — INTERSTELLAR DISTANCE
04:11 — GALAXIES AREN’T RARE
05:10 — CLUSTERS, SUPERCLUSTERS, AND THE COSMIC WEB
06:06 — THE OBSERVABLE UNIVERSE: WHY 93 BILLION LIGHT-YEARS?
07:04 — IS THE UNIVERSE INFINITE?
07:49 — NUMBERS OUR BRAINS CAN’T PROCESS
08:28 — THE FUTURE SCALE OF THE UNIVERSE
09:05 — WHAT VASTNESS REALLY MEANS

Credits:
Comparison of the diameters of the Earth and the Moon (in kilometers) Image: by Fitrah 9131 | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY 4.0,
Size comparison- Betelgeuse and the Sun (potw1726b) Image: by ALMA (ESO/NAOJ/NRAO)/E. O’Gorman/P. Kervella | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY 4.0
Rubin Oort Cloud and Kuiper Belt Illustration (rubin-Oort-Cloud-and-Kuiper-Belt) Image: by RubinObs/NOIRLab/SLAC/NSF/DOE/AURA | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY 4.0
Star formation in the southern Milky Way (eso1425a) Image: by ESO/G. Beccari | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY 4.0
Local Group Image: by Richard Powell | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY-SA 2.5
6 Virgo Supercluster (ELitU) Image: by Andrew Z. Colvin | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY-SA 3.0
07-Laniakea (LofE07240) Image: by Andrew Z. Colvin | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY-SA 4.0
Cosmic Microwave Background (CMB) Image: by ESA and the Planck Collaboration | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY 4.0
The Universe across space and time ESA505241 Image: by ESA, CC BY-SA IGO 3.0 | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY-SA 3.0 IGO
Logarhitmic radial photo of the universe by pablo budassi 9MFK Image: by Pablo Carlos Budassi | Source: https://commons.wikimedia.org/wiki/Fi... | License: CC BY-SA 3.0

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