Cronologia dell'universo
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Cronologia dell'universo 4,8

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