Universumin aikajana 4,8

Tiivistää universumin historian yhteen vuoteen.
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Päivämäärä Viikonpäivä Aika Tapahtuma
1.1.2025 keskiviikko The Big Bang. Beginning of the space and time.
4.1.2025 lauantai Methuselah star. Oldest known star in the universe.
6.1.2025 - 24.1.2025 maanantai - perjantai Reionization era. Early stars start ionizing interstellar gas.
8.1.2025 keskiviikko First black holes form
14.1.2025 tiistai Mass star formation. Universe starts to heat once again.
16.1.2025 torstai First galaxies form
17.1.2025 perjantai GRB 090423. Oldest gamma ray burst ever observed.
22.1.2025 keskiviikko Hubble ultra deep field
26.1.2025 sunnuntai Quasar CFHQS J2329-0301. Oldest known quasar.
30.1.2025 torstai PST B1620-26. Oldest known exoplanet.
1.2.2025 lauantai Milky Way forms
14.2.2025 perjantai GRB 140419A supernova. Second oldest gamma ray burst.
25.2.2025 tiistai BX442 galaxy. Oldest known spiral galaxy.
2.3.2025 sunnuntai Kapteyn b. Oldest known exoplanet lying within the habitable zone.
5.3.2025 keskiviikko Milky Way's cosmic halo forms
16.3.2025 sunnuntai Star formation rate peaks. Universe starts to cool Temperature averages around 13000 K.
29.3.2025 lauantai Oldest population I stars. First stars abundant in metals.
31.3.2025 maanantai Universe becomes habitable. First life-friendly star systems emerge.
14.4.2025 maanantai JKCS 041. Oldest galactic cluster.
19.4.2025 lauantai Universe reaches 1/3 of its present diameter
22.4.2025 tiistai Milky Way star formation rate stabilizes
28.4.2025 maanantai Barnard's star forms. Oldest close solar neighbor.
7.5.2025 keskiviikko Oldest known evidence for dark energy
13.5.2025 tiistai Milky Way's thin disk starts to form
21.5.2025 keskiviikko Lalande 21185
23.5.2025 perjantai Lacaille 9352
3.6.2025 tiistai Milky Way star formation rate begins to decline
8.6.2025 sunnuntai Mizar forms
16.6.2025 maanantai GRB 080319B. Most powerful gamma ray burst ever observed by humans.
16.6.2025 maanantai Arcturus forms. 4th brightest star in the night sky.
27.6.2025 perjantai Universe cools below 5 K
29.6.2025 sunnuntai Growth of large galaxies slows
2.7.2025 keskiviikko 1/2 the age of the Universe
5.7.2025 lauantai Alpha Centauri forms. Closest star system to the Sun.
7.7.2025 maanantai Alnitak forms. Left star of the Orion's Belt.
13.7.2025 sunnuntai Milky Way starts spiralizing
15.7.2025 tiistai Age of an average earth-like planet
21.7.2025 maanantai 61 Cygni forms
26.7.2025 lauantai Dark energy overtakes gravity. Universe's expansion rate starts to accelerate.
31.7.2025 torstai Tau Ceti forms
8.8.2025 perjantai Solar nebula starts collapsing
8.8.2025 perjantai Milky way becomes a spiral galaxy
16.8.2025 lauantai Gliese 570 forms
25.8.2025 maanantai Proxima Centauri forms. Closest star to the Sun.
29.8.2025 perjantai SN 2005ap supernova. Brightest supernova ever observed.
2.9.2025 tiistai The Sun forms
2.9.2025 tiistai Proto-earth forms. Planets, asteroids and comets form from the Sun's protoplanetary disk.
3.9.2025 keskiviikko Formation of the Moon. Theia impacts Earth, the Moon forms from the coalesced debris.
6.9.2025 lauantai Oceans form on Earth. Asteroids bring water to Earth.
6.9.2025 lauantai First known minerals. Zircons form at Jack Hills, Australia.
10.9.2025 keskiviikko Mintaka forms. Right star of the Orion's Belt.
11.9.2025 - 19.9.2025 torstai - perjantai Life emerges on Earth
14.9.2025 - 22.9.2025 sunnuntai - maanantai Late Heavy Bombardment
14.9.2025 sunnuntai Earliest known rock. (Aggregate of minerals).
17.9.2025 keskiviikko Greenstone rock belt
22.9.2025 maanantai Oldest banded iron formation
27.9.2025 lauantai Vaalbara supercontinent emerges
30.9.2025 tiistai Last universal ancestor. Split between bacteria and archaea.
30.9.2025 tiistai Cyanobacteria fossils. Warrawoona, oldest fossil evidence of life on Earth.
5.10.2025 sunnuntai Compressional tectonics
6.10.2025 maanantai Barberton event. One of the largest impacts ever, left a 300 mi / 480 km crater.
8.10.2025 keskiviikko Ur supercontinent forms
8.10.2025 keskiviikko Anoxygenic photosynthesis developed by bacteria
11.10.2025 lauantai First land bacteria
13.10.2025 maanantai Cyanobacteria develop true photosynthesis. Life begins to produce oxygen.
16.10.2025 torstai Zeta Reticuli forms
16.10.2025 torstai Kenorland supercontinent emerges
16.10.2025 torstai Tides decline below 1000 ft / 300 m
18.10.2025 lauantai Vaalbara supercontinent breaks up
21.10.2025 tiistai Major komatiite eruption
21.10.2025 tiistai First eukaryotes emerge. Early estimate.
24.10.2025 perjantai Oldest known giant carbonate platform
25.10.2025 lauantai Zeta Puppis forms
26.10.2025 sunnuntai Great Oxygenation event. Bacterially produced oxygen starts to accumulate in the atmosphere.
26.10.2025 sunnuntai Movement of the tectonic plates commences
29.10.2025 keskiviikko Suavjarvi impact event left oldest still recognizable crater
29.10.2025 - 5.11.2025 keskiviikko - keskiviikko Huronian glaciation. First snowball earth period.
1.11.2025 lauantai Continental red beds form
3.11.2025 maanantai Atmospheric oxygen level surpasses one percent
3.11.2025 maanantai Ozone layer forms
6.11.2025 torstai Earliest known eukaryote fossils (acritarchs)
6.11.2025 torstai Earliest multicellular life. Francevillian Group Fossil.
8.11.2025 lauantai Vredefort impact event. One of the largest impacts ever left a 190 mi/ 300 km crater.
11.11.2025 tiistai Atmospheric oxygen level surpasses 15 percent
11.11.2025 tiistai Natural nuclear reactor forms in Oklo, Gabon
13.11.2025 torstai Sudbury impact, event left a 160 mi / 260 km crater
14.11.2025 perjantai Supercontinent Columbia forms
15.11.2025 lauantai Vishnu Basement Rocks. Oldest rocks in the Grand Canyon.
17.11.2025 maanantai Oldest sand dune ergs
19.11.2025 keskiviikko Mitochondria assimilate into eukaryotic cells
22.11.2025 lauantai Supercontinent Columbia breaks up
23.11.2025 sunnuntai Geologic platform covers expand
24.11.2025 maanantai Population of stromatolites rapidly rises
25.11.2025 tiistai Procyon forms. Brightest star in Canis Minor.
27.11.2025 torstai Greenville orogeny starts
30.11.2025 sunnuntai Supercontinent Rodinia forms
30.11.2025 sunnuntai Bangiomorpha pubescens. First sexually reproducing organism.
1.12.2025 maanantai Population explosion of eukaryotes
2.12.2025 tiistai Earliest flagellate protists
9.12.2025 tiistai Population of stromatolites starts to decline
10.12.2025 keskiviikko Protista population explodes
11.12.2025 torstai Kaigas glaciation. Snowball earth period.
12.12.2025 perjantai Supercontinent Rodinia breaks apart
12.12.2025 - 14.12.2025 perjantai - sunnuntai Sturtian glaciation. Snowball earth period.
14.12.2025 sunnuntai Marinoan glaciation. Snowball earth period.
16.12.2025 tiistai Fossilized worm impressions in China
16.12.2025 tiistai Avalon explosion. Ediacaran fauna emerges.
17.12.2025 keskiviikko Cambrian explosion. Exponential diversification of life, most major animal phyla appear.
18.12.2025 torstai First trilobites
20.12.2025 lauantai 2.20 Plants and arthropods colonize the land
20.12.2025 lauantai 5.31 Ordovician extinction event. 60% of all species go extinct.
20.12.2025 lauantai 21.23 First air-breathing animals
21.12.2025 sunnuntai 13.15 First tetrapods
21.12.2025 sunnuntai 22.46 First tree-like plants
22.12.2025 maanantai 5.07 Late Devonian extinction. 70% of all species go extinct.
23.12.2025 tiistai 6.31 First amniotes
23.12.2025 tiistai 12.52 First reptiles
23.12.2025 tiistai 22.23 Atmospheric oxygen level peaks at 35%. Arthropods grow into unprecedented sizes.
24.12.2025 keskiviikko 1.33 Pangaea forms. Last supercontinent.
25.12.2025 torstai 8.40 Permian extinction event. Largest extinction event in history, 90-96% of all species go extinct.
25.12.2025 torstai 9.18 Sirius forms . Brightest star in the night sky.
25.12.2025 torstai 21.21 First dinosaurs
26.12.2025 perjantai 1.10 First mammals
26.12.2025 perjantai 16.24 Triassic extinction event. 75% of all species go extinct.
26.12.2025 perjantai 23.23 First giant sauropods
27.12.2025 lauantai 5.44 Pangaea splits into Laurasia and Gondwana
27.12.2025 lauantai 8.16 First stegosaurs
27.12.2025 lauantai 21.36 First birds
28.12.2025 sunnuntai 3.57 Madagascar splits from Africa
28.12.2025 sunnuntai 13.28 First flowering plants
28.12.2025 sunnuntai 13.28 Laurasia and Gondwana begin to drift apart
29.12.2025 maanantai 4.42 Spinosaurus evolves. Largest of all carnivorous dinosaurs.
29.12.2025 maanantai 8.31 First bees
29.12.2025 maanantai 14.52 Indian subcontinent splits from Gondwana
29.12.2025 maanantai 21.13 Australia splits from Antarctica
30.12.2025 tiistai 4.50 Tyrannosaurus rex evolves
30.12.2025 tiistai 6.06 Cretaceous extinction event. 75% of all species vanish.
30.12.2025 tiistai 9.54 First primates evolve
30.12.2025 tiistai 13.05 First modern birds
30.12.2025 tiistai 16.15 Indian subcontinent collides with Asia. Tiber and Himalayas start to rise.
30.12.2025 tiistai 18.09 Whales return to the water
30.12.2025 tiistai 22.36 Antarctic ice cap begins to grow
31.12.2025 keskiviikko 1.46 Grasslands become widespread
31.12.2025 keskiviikko 4.57 South America separates from Antarctica
31.12.2025 keskiviikko 7.29 First elephants. Eritreum melakeghebrekristosi.
31.12.2025 keskiviikko 12.34 Divergence of great apes and lesser apes
31.12.2025 keskiviikko 14.28 First bovids
31.12.2025 keskiviikko 17.01 First large horses
31.12.2025 keskiviikko 18.55 Rigel forms. Brightest star in Orion.
31.12.2025 keskiviikko 19.14 Betelgeuse forms. Second brightest star in Orion.
31.12.2025 keskiviikko 20.11 Last common ancestor humans and chimpanzees
31.12.2025 keskiviikko 20.13 - 20.36 Messinian salinity crisis. Strait of Gibraltar closes tight, Mediterranean Sea dries out.
31.12.2025 keskiviikko 21.27 Australopithecus evolves
31.12.2025 keskiviikko 22.05 Great American Interchange. Isthmus of Panama rises, North and South America join, extensive fauna exchange follows.
31.12.2025 keskiviikko 22.24 Current ice age begins
31.12.2025 keskiviikko 22.36 First members of the genus Homo appear
31.12.2025 keskiviikko 23.02 First controlled use of fire by Homo erectus
31.12.2025 keskiviikko 23.30 Last reversal of the Earth's magnetic field
31.12.2025 keskiviikko 23.35 Yellowstone Caldera erupts
31.12.2025 keskiviikko 23.40 Earliest human engravings. Zig-zag patterns on shells in Java.
31.12.2025 keskiviikko 23.48 Earliest instances of burial
31.12.2025 keskiviikko 23.50 Neanderthals evolve
31.12.2025 keskiviikko 23.52 Anatomically modern humans appear in Africa
31.12.2025 keskiviikko 23.56 Humans begin migrating out of Africa
31.12.2025 keskiviikko 23.57 Toba supervolcanic eruption. Human population falls to 10,000.
31.12.2025 keskiviikko 23.58 23:58:40 Neanderthals go extinct
31.12.2025 keskiviikko 23.59 23:59:25 First domesticated dogs
31.12.2025 keskiviikko 23.59 23:59:39 Beginning of agriculture
31.12.2025 keskiviikko 23.59 23:59:46 Wheel invented
31.12.2025 keskiviikko 23.59 23:59:48 Writing invented
31.12.2025 keskiviikko 23.59 23:59:49 Great Pyramid
31.12.2025 keskiviikko 23.59 23:59:52 Iron Age begins
31.12.2025 keskiviikko 23.59 23:59:55 Julius Caesar
31.12.2025 keskiviikko 23.59 23:59:58 Galileo Galilei
31.12.2025 keskiviikko 23.59 23:59:59 Charles Darwin