The most distant objects in the Universe are 47 billion light years away, making the size of the observable Universe 94 billion light years across. How can the observable universe be larger than the time it takes light to travel over the age of the Universe? This is because the universe has been expanding during this time. This causes very distant objects to be further away from us than their light travel time. For additional information, see Ned Wright's Cosmology FAQ.
Written By Rovin Karki
Narrated By Bill D.
Music By Keys of Moon Music(@KeysofMoonMusic/videos)
Content:
➤Introduction and Extent of the Observable Universe
➤Cosmic Microwave Background Radiation (CMB)
➤Redshift and the Expansion of the Universe
➤Light Travel Time and Look-Back Time
➤The Shape and Geometry of the Universe
➤Cosmic Inflation and the Early Universe
➤Large-Scale Structure of the Universe
➤Dark Matter and Dark Energy
➤Theoretical Models of the Multiverse
➤Observations and Technologies
Thanks to: Nirmalaya Kajuri, Frank Heile, Brain Gray, Viktor T. Toth, Anwar Ahmad Siddiqui, Jonathan, Ganesh Subramaniam, T. Barczuk, Krister Sundelin, Steven Bee, Quasick etc.
Fotages Used: NASA, ESA, Pixabay, vecteezy etc.
Images:
➤ NASA, ESA, G. Bacon (STScI), A. Feild (STScI), P. Oesch (Yale)
➤NASA, ESA, G. Illingworth, D. Magee, and P. Oesch (University of California, Santa Cruz), R. Bouwens (Leiden University), and the HUDF09 Team; Annotations and stitching by E. Siegel
➤ P. Oesch and B. Robertson (University of California, Santa Cruz), and A. Feild (STScI)
➤ Kevin Hainline for the JADES Collaboration, AAS242
Resources:
➤ https://quasick.wordpress.com/
➤ https://phys.org/news/2023-08-expansi...
➤ https://www.quantamagazine.org/what-i...
➤ https://simple.wikipedia.org/wiki/Lar...
➤ https://science.nasa.gov/universe/dar...
➤ Quora
➤ Observable Universe, Earth's size comparison, Sun's dimensions, Solar System distances, Kuiper Belt, Oort Cloud, Light Year, Alpha Centauri, Milky Way Galaxy, Andromeda Galaxy, Virgo Supercluster, Cosmic Microwave Background Radiation (CMB), Penzias and Wilson discovery, Big Bang evidence, Redshift, Doppler Effect, Interstellar travel, Astronomical Units (AU), Proxima Centauri, Voyager 1 spacecraft, Interstellar neighborhood, Orion Arm, Spiral galaxy, Parsecs, Galaxy clusters, Eridanus Cluster, Space map, Superclusters, Observable universe boundaries, 2 trillion galaxies, Cosmic scales, Cosmic expansion, Photon interactions, Thermal equilibrium, Hydrogen atom formation, Photon decoupling, Dark energy, Expansion acceleration, Radio antenna discovery, Wavelength shift, Fraunhofer lines, Helium spectral lines, Look-back time, William Hyde Wollaston, Joseph von Fraunhofer, Bunsen and Kirchhoff, Cosmic distances, Light years away, Dark Matter, Billion light years ago, most distant galaxies, James Webb Space Telescope, James Webb most distant galaxy, The size of the universe, nova, journey to the edge of the universe, astrophysics, cosmology, ESA, David butler, BBC, PBS, Brain Cox, Science Channel, Interstellar, BBC Earth Science, MIT OpenCourse, Discovery Uk, CERN, History of universe, cool world, SEA etc.
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