Observable Universe is a name for the universe we humans currently inhabit. This includes the individuals who contributed to this wiki. As far as we are aware, our universe is the only observable and measurable space, though this may change in the future.
The Observable Universe contains all of space, time and everything. Currently, the observable universe is 92,200,000,000 ± 140,315,000 light-years across, and makes up 4.9% of the entire universe. However, this number is only of kinds of antimatter we know of, such as dark matter and energy. The actual size of the universe, due to other kinds of undiscovered antimatter, is actually over 160-sextillion times the size of the Observable Universe. This means that if you were to place a light bulb on Pluto, Pluto would accurately represent the size of the universe as the light bulb would represent the size of the Observable Universe. However, it's expanding at over the speed of light, so does it change? No, because our units are ever-so-slightly expanding with it. The universe is currently thought to be 13,787,000,000 ± 20,000,000 years old, yet the oldest star, HD 140283 is thought to be 14,460,000,000 ± 800,000,000 years old. What's up with that? Scientists are finding out it is less and less old than previously thought. A universe could be described as an independent segment of possibility; a bubble of space with a defined beginning point (typically a Big Bang) and a set of physical laws, which may or may not line up with the ones humanity observes. The only thing aside from a vecoverse that can be before the Universe is the Law of Dimensional Cycle.
Multiverses
Our universe is contained in a multiverse along with other multiple (and probably alternate) universes - perhaps an immeasurable number - which may or may not contain humans or life at all. In fact, some of them may be so hostile, and chemistry or physics as we know them, may not function properly. The possible total number of universes in our multiverse, based on the probability law, is 10^10^10^122.
Our universe was involved in a collision 13,786,620,000 ± 21,000 years ago. In the southern southeast universe, in an oval stretching across 1,800,000,000 light-years, there is a spot slightly colder than the regular universe, that is devoid of what should be an area of about 10,000 galaxies. It is only 0.00015°C colder than the rest of the universe, but that is much colder on a scale of space temperature. Why does this spot exist? It is due to this universal collision! All the galaxies were sucked up from that area into the other universe, and the area gradually grew colder over time. The laws of physics were somewhat changed, and into what they are today. The collision would look like an extremely cold mirror coming towards you, and then that mirror suddenly catching on fire and burning. Everything in the area would be sucked into the other universe, and everything in the other universe’s area of collision would be sent into ours. The universe could have been much colder or older than ours, causing the area to be frozen. Thermodynamic equilibrium would most likely have started making the area warmer, turning it into what it is today.
Other Information
Most universes, including ours, shall eventually "die" as the second law of thermodynamics ensures that energy becomes less and less usable over time. This universe is also the least confusing to understand, as it is the only one that we know exists so far.
Structure
Our universe starts in a big bang with quantum foam at Planck Temperature, to create space-time. Eventually, this comes together in large numbers to form gluons. These gluons can eventually form into quarks, which create protons and neutrons. Protons come together, sometimes with neutrons, to form atoms, the basic building blocks of all material. These atomic nuclei also form electrons around them to propel against protons. This forms an atom, the basic building block of all material. The first atom is hydrogen, but then helium atoms form. And soon, so do lithium, boron, carbon, oxygen, nitrogen, sodium, and many more! These start forming meteors, then asteroids, and planets. Eventually, some planets grow large, becoming a star. Nearby planets get pulled into orbit, creating a planetary system. This eventually forms star clusters, which form galaxies. These form galaxy clusters, which form superclusters. these form huge cosmic webs, covering about five percent of the observable universe.
Our Address
Apartment 1, 1 Example Road (Example Residence), Example City, Example Province, Example Country, Antarctica, 3 Solar System (Earth), Milky Way Galaxy, Local Group, Virgo Supercluster, Laniakea Supercluster, Cosmic Web, Observable Universe, Local Multiverse
See Also
Explore the Universe
- CMB cold spot (Eridanus Supervoid)
- Pisces–Cetus Supercluster Complex (supercluster complex)
- Laniakea Supercluster (supercluster)
- Virgo Supercluster (supercluster)
- Local Group (galaxy group)
- Milky Way (barred spiral galaxy)
- Large Megallanic Cloud (Satellite)
- Antlia-2 (Satellite)
- Sagittarius Dwarf (Satellite)
- Crater II (Satellite)
- Small Megallanic Cloud (Satellite)
- Canes Venatici I (Satellite)
- Canis Major Dwarf
- Boötes III (Satellite)
- Sculptor Dwarf (Satellite)
- Draco Dwarf (Satellite)
- Hercules (Satellite)
- Leo II (Satellite)
- Fornax Dwarf (Satellite)
- Eridanus II (Satellite)
- Sextans Dwarf Spherodial (Satellite)
- Carina Dwarf Spheroidal (Satellite)
- Leo I (Satellite)
- Ursa Major Dwarf (Satellite)
- Indus II (Satellite)
- Leo T (Satellite)
- Aquarius II (Satellite)
- Boötes I (Satellite)
- Canes Venatici II (Satellite)
- Leo IV (Satellite)
- Tucana IV (Satellite)
- Columba I (Satellite)
- Ursa Major II dwarf (Satellite)
- Grus II (Satellite)
- Cetus III (Satellite)
- Coma Berenices (Satellite)
- Hydrus II (Satellite)
- Reticulum III (Satellite)
- Pisces II (Satellite)
- Pegasus III (Satellite)
- Hydrus I (Satellite)
- Boötes II (Satellite)
- Tucana III (Satellite)
- Virgo (Satellite)
- Horologium II (Satellite)
- Sagittarius II (Satellite)
- Leo V (Satellite)
- Triangulum II (Satellite)
- Segue 2 (Satellite)
- Segue 1 (Satellite)
- Draco II (Satellite)
- Tucana V (Satellite)
- Cetus II (Satellite)
- Reticulum II (Satellite)
- Tucana II (Satellite)
- Pisces I (Satellite)
- DES (Satellite)
- Eridianus III (Satellite)
- Horologium I (Satellite)
- Kim 2 (or Indus I) (Satellite)
- Pheonix II (Satellite)
- Ursa Major I Dwarf (Satellite)
- Pictorus (Satellite)
- Grus I (Satellite)
- Carina II (Satellite)
- Carina III (Satellite)
- Sagittarius A* (supermassive black hole)
- Milky Way Bar (central bar)
- Perseus Arm
- Norma Arm
- Scutum-Centaurus Arm
- Carina-Sagittarius Arm
- Orion-Cygnus Arm
- Local Bubble
- Local Interstellar Cloud
- The Solar System
- The Sun (G-type star)
- Inner Solar System
- Asteroid Belt
- Vesta (minor planet, asteroid)
- Ceres (minor planet, dwarf planet, asteroid)
- Outer Solar System
- Jupiter (jovian planet)
- Io (satellite)
- Europa (satellite)
- Ganymede (satellite)
- Callisto (satellite)
- Valetudo
- Amalthea
- Carme
- Adrastea
- Himalia
- Pasiphae
- Thebe
- Metis
- Ananke
- Elara
- Sinope
- Kalyke
- Eupheme
- Eriene
- Lysithia
- Themisto
- Callirrhoe
- Philophyrosyne
- Carpo
- Isonoe
- Ersa
- S/2017 J 4
- S/2017 J 2
- Cyllene
- Eurydome
- Harpalyke
- Chaldene
- Taygete
- Megaclite
- Iocaste
- Jupiter LXI
- Autonoe
- Hermippe
- S/2003 J 12
- Arche
- Pasithee
- Euanthe
- Aitne
- Aoede
- Erinome
- Hegimone
- Herse
- Eukelade
- Praxidike
- Helike
- Dia
- Saturn (jovian planet)
- Mimas (satellite)
- Enceladus (satellite)
- Tethys (satellite)
- Dione (satellite)
- Rhea (satellite)
- Titan (satellite)
- Iapetus (satellite)
- Hyperion
- Phoebe
- Tethys
- Reha
- S/2004 S 13
- Epimithius
- Tarqeq
- Daphnis
- Telesto
- Ijariaq
- Polydeuces
- S/2004 S17
- Pan
- Siarnaq
- Pailiaq
- Methone
- Narvi
- Griep
- Albiorix
- Erriapus
- Tarvos
- Pallene
- Bebhionn
- Pandora
- S/2007 S 3
- S/2004 S 12
- S/2007 S 2
- Aegaeon
- Atlas
- Skathi
- S/2004 S 22
- Bestla
- Anthe
- S/2009 S 1
- Hellene
- Skoll
- Hyrrokkin
- Kiviuq
- Surtur
- Jarnsaxa
- S/2004 S 29
- Calypso
- S/2004 S 26
- Janus
- S/2004 S 7
- Uranus (jovian planet)
- Miranda (satellite)
- Ariel (satellite)
- Umbriel (satellite)
- Titania (satellite)
- Oberon (satellite)
- Puck
- Cressida
- Desdemoa
- Cordelia
- Prospero
- Perdita
- Setebos
- Stephano
- Trinculo
- Ophelia
- Sycorax
- Caliban
- Cupid
- Mab
- Portia
- Juliet
- Belinda
- Bianca
- Margaret
- Rosalind
- Francisco
- Ferdinand
- Neptune (jovian planet)
- Triton (satellite)
- Thallasa
- Naiad
- Nereid
- Neso
- Proteus
- Hippocamp
- Despina
- Galatea
- Halimede
- Laomedeia
- Psamath
- Larissa
- Sao
- Jupiter (jovian planet)
- Kuiper Belt
- Scattered Disc
- Eris (minor planet, dwarf planet)
- Detached Objects
- Sedna (minor planet)
- Oort Cloud
- The Solar System
- Local Interstellar Cloud
- Local Bubble
- Andromeda Galaxy (spiral galaxy)
- Messier 110 (Satellite)
- Messier 30 (Satellite)
- NGC 185 (Satellite)
- NGC 147 (Satellite)
- Andromeda I (Satellite)
- Andromeda II (Satellite)
- Andromeda III (Satellite)
- Andromeda V (Satellite)
- Pegasus Dwarf Sphereodial (Satellite)
- Cassiopeia Dwarf (Satellite)
- Andromeda VIII (Satellite)
- Andromeda IX (Satellite)
- Andromeda X (Satellite)
- Andromeda XI (Satellite)
- Andromeda XII (Satellite)
- Andromeda XIII (Satellite)
- Andromeda XIV (Satellite)
- Andromeda XV (Satellite)
- Andromeda XVI (Satellite)
- Andromeda XVII (Satellite)
- Andromeda XVIII (Satellite)
- Andromeda XIX (Satellite)
- Andromeda XX (Satellite)
- Andromeda XXI (Satellite)
- Andromeda XXII (Satellite)
- Andromeda XXII (Satellite)
- Andromeda XXIII (Satellite)
- Andromeda XXIV (Satellite)
- Andromeda XXV (Satellite)
- Andromeda XXVI (Satellite)
- Andromeda XXVII (Satellite)
- Andromeda XXVIII (Satellite)
- Andromeda XXIX (Satellite)
- Tidal Stream Southwest (Stellar Stream) (Satellite)
- Tidal Stream Northwest (Stellar Stream) (Satellite)
- Triangulum Galaxy (spiral galaxy) (Satellite)
- Milky Way (barred spiral galaxy)
- M81 Group (galaxy group)
- M101 Group (galaxy group)
- M51 Group (galaxy group)
- M66 Group (galaxy group)
- M96 Group (galaxy group)
- Draco Group (galaxy group)
- Ursa Major Group (galaxy group)
- Virgo Cluster (galaxy cluster)
- Local Group (galaxy group)
- The Great Attractor (gravitational anomaly)
- Hydra-Centaurus Supercluster (supercluster)
- Antlia Wall (supercluster)
- Centaurus Supercluster (supercluster)
- Pavo-Indus Supercluster (supercluster)
- Southern Supercluster (supercluster)
- Fornax Cluster (galaxy cluster)
- Virgo Supercluster (supercluster)
- Perseus-Pisces Supercluster (supercluster)
- Sculptor Supercluster (supercluster)
- Pisces-Cetus A Supercluster (supercluster)
- Pisces-Cetus B Supercluster (supercluster)
- Laniakea Supercluster (supercluster)