Universums tidslinje 4,8

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Datum Dag i veckan Tid Händelse
2025-01-01 onsdag The Big Bang. Beginning of the space and time.
2025-01-04 lördag Methuselah star. Oldest known star in the universe.
2025-01-06 - 2025-01-24 måndag - fredag Reionization era. Early stars start ionizing interstellar gas.
2025-01-08 onsdag First black holes form
2025-01-14 tisdag Mass star formation. Universe starts to heat once again.
2025-01-16 torsdag First galaxies form
2025-01-17 fredag GRB 090423. Oldest gamma ray burst ever observed.
2025-01-22 onsdag Hubble ultra deep field
2025-01-26 söndag Quasar CFHQS J2329-0301. Oldest known quasar.
2025-01-30 torsdag PST B1620-26. Oldest known exoplanet.
2025-02-01 lördag Milky Way forms
2025-02-14 fredag GRB 140419A supernova. Second oldest gamma ray burst.
2025-02-25 tisdag BX442 galaxy. Oldest known spiral galaxy.
2025-03-02 söndag Kapteyn b. Oldest known exoplanet lying within the habitable zone.
2025-03-05 onsdag Milky Way's cosmic halo forms
2025-03-16 söndag Star formation rate peaks. Universe starts to cool Temperature averages around 13000 K.
2025-03-29 lördag Oldest population I stars. First stars abundant in metals.
2025-03-31 måndag Universe becomes habitable. First life-friendly star systems emerge.
2025-04-14 måndag JKCS 041. Oldest galactic cluster.
2025-04-19 lördag Universe reaches 1/3 of its present diameter
2025-04-22 tisdag Milky Way star formation rate stabilizes
2025-04-28 måndag Barnard's star forms. Oldest close solar neighbor.
2025-05-07 onsdag Oldest known evidence for dark energy
2025-05-13 tisdag Milky Way's thin disk starts to form
2025-05-21 onsdag Lalande 21185
2025-05-23 fredag Lacaille 9352
2025-06-03 tisdag Milky Way star formation rate begins to decline
2025-06-08 söndag Mizar forms
2025-06-16 måndag GRB 080319B. Most powerful gamma ray burst ever observed by humans.
2025-06-16 måndag Arcturus forms. 4th brightest star in the night sky.
2025-06-27 fredag Universe cools below 5 K
2025-06-29 söndag Growth of large galaxies slows
2025-07-02 onsdag 1/2 the age of the Universe
2025-07-05 lördag Alpha Centauri forms. Closest star system to the Sun.
2025-07-07 måndag Alnitak forms. Left star of the Orion's Belt.
2025-07-13 söndag Milky Way starts spiralizing
2025-07-15 tisdag Age of an average earth-like planet
2025-07-21 måndag 61 Cygni forms
2025-07-26 lördag Dark energy overtakes gravity. Universe's expansion rate starts to accelerate.
2025-07-31 torsdag Tau Ceti forms
2025-08-08 fredag Solar nebula starts collapsing
2025-08-08 fredag Milky way becomes a spiral galaxy
2025-08-16 lördag Gliese 570 forms
2025-08-25 måndag Proxima Centauri forms. Closest star to the Sun.
2025-08-29 fredag SN 2005ap supernova. Brightest supernova ever observed.
2025-09-02 tisdag The Sun forms
2025-09-02 tisdag Proto-earth forms. Planets, asteroids and comets form from the Sun's protoplanetary disk.
2025-09-03 onsdag Formation of the Moon. Theia impacts Earth, the Moon forms from the coalesced debris.
2025-09-06 lördag Oceans form on Earth. Asteroids bring water to Earth.
2025-09-06 lördag First known minerals. Zircons form at Jack Hills, Australia.
2025-09-10 onsdag Mintaka forms. Right star of the Orion's Belt.
2025-09-11 - 2025-09-19 torsdag - fredag Life emerges on Earth
2025-09-14 - 2025-09-22 söndag - måndag Late Heavy Bombardment
2025-09-14 söndag Earliest known rock. (Aggregate of minerals).
2025-09-17 onsdag Greenstone rock belt
2025-09-22 måndag Oldest banded iron formation
2025-09-27 lördag Vaalbara supercontinent emerges
2025-09-30 tisdag Last universal ancestor. Split between bacteria and archaea.
2025-09-30 tisdag Cyanobacteria fossils. Warrawoona, oldest fossil evidence of life on Earth.
2025-10-05 söndag Compressional tectonics
2025-10-06 måndag Barberton event. One of the largest impacts ever, left a 300 mi / 480 km crater.
2025-10-08 onsdag Ur supercontinent forms
2025-10-08 onsdag Anoxygenic photosynthesis developed by bacteria
2025-10-11 lördag First land bacteria
2025-10-13 måndag Cyanobacteria develop true photosynthesis. Life begins to produce oxygen.
2025-10-16 torsdag Zeta Reticuli forms
2025-10-16 torsdag Kenorland supercontinent emerges
2025-10-16 torsdag Tides decline below 1000 ft / 300 m
2025-10-18 lördag Vaalbara supercontinent breaks up
2025-10-21 tisdag Major komatiite eruption
2025-10-21 tisdag First eukaryotes emerge. Early estimate.
2025-10-24 fredag Oldest known giant carbonate platform
2025-10-25 lördag Zeta Puppis forms
2025-10-26 söndag Great Oxygenation event. Bacterially produced oxygen starts to accumulate in the atmosphere.
2025-10-26 söndag Movement of the tectonic plates commences
2025-10-29 onsdag Suavjarvi impact event left oldest still recognizable crater
2025-10-29 - 2025-11-05 onsdag - onsdag Huronian glaciation. First snowball earth period.
2025-11-01 lördag Continental red beds form
2025-11-03 måndag Atmospheric oxygen level surpasses one percent
2025-11-03 måndag Ozone layer forms
2025-11-06 torsdag Earliest known eukaryote fossils (acritarchs)
2025-11-06 torsdag Earliest multicellular life. Francevillian Group Fossil.
2025-11-08 lördag Vredefort impact event. One of the largest impacts ever left a 190 mi/ 300 km crater.
2025-11-11 tisdag Atmospheric oxygen level surpasses 15 percent
2025-11-11 tisdag Natural nuclear reactor forms in Oklo, Gabon
2025-11-13 torsdag Sudbury impact, event left a 160 mi / 260 km crater
2025-11-14 fredag Supercontinent Columbia forms
2025-11-15 lördag Vishnu Basement Rocks. Oldest rocks in the Grand Canyon.
2025-11-17 måndag Oldest sand dune ergs
2025-11-19 onsdag Mitochondria assimilate into eukaryotic cells
2025-11-22 lördag Supercontinent Columbia breaks up
2025-11-23 söndag Geologic platform covers expand
2025-11-24 måndag Population of stromatolites rapidly rises
2025-11-25 tisdag Procyon forms. Brightest star in Canis Minor.
2025-11-27 torsdag Greenville orogeny starts
2025-11-30 söndag Supercontinent Rodinia forms
2025-11-30 söndag Bangiomorpha pubescens. First sexually reproducing organism.
2025-12-01 måndag Population explosion of eukaryotes
2025-12-02 tisdag Earliest flagellate protists
2025-12-09 tisdag Population of stromatolites starts to decline
2025-12-10 onsdag Protista population explodes
2025-12-11 torsdag Kaigas glaciation. Snowball earth period.
2025-12-12 fredag Supercontinent Rodinia breaks apart
2025-12-12 - 2025-12-14 fredag - söndag Sturtian glaciation. Snowball earth period.
2025-12-14 söndag Marinoan glaciation. Snowball earth period.
2025-12-16 tisdag Fossilized worm impressions in China
2025-12-16 tisdag Avalon explosion. Ediacaran fauna emerges.
2025-12-17 onsdag Cambrian explosion. Exponential diversification of life, most major animal phyla appear.
2025-12-18 torsdag First trilobites
2025-12-20 lördag 02:20 Plants and arthropods colonize the land
2025-12-20 lördag 05:31 Ordovician extinction event. 60% of all species go extinct.
2025-12-20 lördag 21:23 First air-breathing animals
2025-12-21 söndag 13:15 First tetrapods
2025-12-21 söndag 22:46 First tree-like plants
2025-12-22 måndag 05:07 Late Devonian extinction. 70% of all species go extinct.
2025-12-23 tisdag 06:31 First amniotes
2025-12-23 tisdag 12:52 First reptiles
2025-12-23 tisdag 22:23 Atmospheric oxygen level peaks at 35%. Arthropods grow into unprecedented sizes.
2025-12-24 onsdag 01:33 Pangaea forms. Last supercontinent.
2025-12-25 torsdag 08:40 Permian extinction event. Largest extinction event in history, 90-96% of all species go extinct.
2025-12-25 torsdag 09:18 Sirius forms . Brightest star in the night sky.
2025-12-25 torsdag 21:21 First dinosaurs
2025-12-26 fredag 01:10 First mammals
2025-12-26 fredag 16:24 Triassic extinction event. 75% of all species go extinct.
2025-12-26 fredag 23:23 First giant sauropods
2025-12-27 lördag 05:44 Pangaea splits into Laurasia and Gondwana
2025-12-27 lördag 08:16 First stegosaurs
2025-12-27 lördag 21:36 First birds
2025-12-28 söndag 03:57 Madagascar splits from Africa
2025-12-28 söndag 13:28 First flowering plants
2025-12-28 söndag 13:28 Laurasia and Gondwana begin to drift apart
2025-12-29 måndag 04:42 Spinosaurus evolves. Largest of all carnivorous dinosaurs.
2025-12-29 måndag 08:31 First bees
2025-12-29 måndag 14:52 Indian subcontinent splits from Gondwana
2025-12-29 måndag 21:13 Australia splits from Antarctica
2025-12-30 tisdag 04:50 Tyrannosaurus rex evolves
2025-12-30 tisdag 06:06 Cretaceous extinction event. 75% of all species vanish.
2025-12-30 tisdag 09:54 First primates evolve
2025-12-30 tisdag 13:05 First modern birds
2025-12-30 tisdag 16:15 Indian subcontinent collides with Asia. Tiber and Himalayas start to rise.
2025-12-30 tisdag 18:09 Whales return to the water
2025-12-30 tisdag 22:36 Antarctic ice cap begins to grow
2025-12-31 onsdag 01:46 Grasslands become widespread
2025-12-31 onsdag 04:57 South America separates from Antarctica
2025-12-31 onsdag 07:29 First elephants. Eritreum melakeghebrekristosi.
2025-12-31 onsdag 12:34 Divergence of great apes and lesser apes
2025-12-31 onsdag 14:28 First bovids
2025-12-31 onsdag 17:01 First large horses
2025-12-31 onsdag 18:55 Rigel forms. Brightest star in Orion.
2025-12-31 onsdag 19:14 Betelgeuse forms. Second brightest star in Orion.
2025-12-31 onsdag 20:11 Last common ancestor humans and chimpanzees
2025-12-31 onsdag 20:13 - 20:36 Messinian salinity crisis. Strait of Gibraltar closes tight, Mediterranean Sea dries out.
2025-12-31 onsdag 21:27 Australopithecus evolves
2025-12-31 onsdag 22:05 Great American Interchange. Isthmus of Panama rises, North and South America join, extensive fauna exchange follows.
2025-12-31 onsdag 22:24 Current ice age begins
2025-12-31 onsdag 22:36 First members of the genus Homo appear
2025-12-31 onsdag 23:02 First controlled use of fire by Homo erectus
2025-12-31 onsdag 23:30 Last reversal of the Earth's magnetic field
2025-12-31 onsdag 23:35 Yellowstone Caldera erupts
2025-12-31 onsdag 23:40 Earliest human engravings. Zig-zag patterns on shells in Java.
2025-12-31 onsdag 23:48 Earliest instances of burial
2025-12-31 onsdag 23:50 Neanderthals evolve
2025-12-31 onsdag 23:52 Anatomically modern humans appear in Africa
2025-12-31 onsdag 23:56 Humans begin migrating out of Africa
2025-12-31 onsdag 23:57 Toba supervolcanic eruption. Human population falls to 10,000.
2025-12-31 onsdag 23:58 23:58:40 Neanderthals go extinct
2025-12-31 onsdag 23:59 23:59:25 First domesticated dogs
2025-12-31 onsdag 23:59 23:59:39 Beginning of agriculture
2025-12-31 onsdag 23:59 23:59:46 Wheel invented
2025-12-31 onsdag 23:59 23:59:48 Writing invented
2025-12-31 onsdag 23:59 23:59:49 Great Pyramid
2025-12-31 onsdag 23:59 23:59:52 Iron Age begins
2025-12-31 onsdag 23:59 23:59:55 Julius Caesar
2025-12-31 onsdag 23:59 23:59:58 Galileo Galilei
2025-12-31 onsdag 23:59 23:59:59 Charles Darwin