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Garis Masa Alam Semesta 4.8

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Tarikh Hari dalam seminggu Masa Peristiwa
1/01/27 Friday The Big Bang. Beginning of the space and time.
4/01/27 Monday Methuselah star. Oldest known star in the universe.
6/01/27 - 24/01/27 Wednesday - Sunday Reionization era. Early stars start ionizing interstellar gas.
8/01/27 Friday First black holes form
14/01/27 Thursday Mass star formation. Universe starts to heat once again.
16/01/27 Saturday First galaxies form
17/01/27 Sunday GRB 090423. Oldest gamma ray burst ever observed.
22/01/27 Friday Hubble ultra deep field
26/01/27 Tuesday Quasar CFHQS J2329-0301. Oldest known quasar.
30/01/27 Saturday PST B1620-26. Oldest known exoplanet.
1/02/27 Monday Milky Way forms
14/02/27 Sunday GRB 140419A supernova. Second oldest gamma ray burst.
25/02/27 Thursday BX442 galaxy. Oldest known spiral galaxy.
2/03/27 Tuesday Kapteyn b. Oldest known exoplanet lying within the habitable zone.
5/03/27 Friday Milky Way's cosmic halo forms
16/03/27 Tuesday Star formation rate peaks. Universe starts to cool Temperature averages around 13000 K.
29/03/27 Monday Oldest population I stars. First stars abundant in metals.
31/03/27 Wednesday Universe becomes habitable. First life-friendly star systems emerge.
14/04/27 Wednesday JKCS 041. Oldest galactic cluster.
19/04/27 Monday Universe reaches 1/3 of its present diameter
22/04/27 Thursday Milky Way star formation rate stabilizes
28/04/27 Wednesday Barnard's star forms. Oldest close solar neighbor.
7/05/27 Friday Oldest known evidence for dark energy
13/05/27 Thursday Milky Way's thin disk starts to form
21/05/27 Friday Lalande 21185
23/05/27 Sunday Lacaille 9352
3/06/27 Thursday Milky Way star formation rate begins to decline
8/06/27 Tuesday Mizar forms
16/06/27 Wednesday GRB 080319B. Most powerful gamma ray burst ever observed by humans.
16/06/27 Wednesday Arcturus forms. 4th brightest star in the night sky.
27/06/27 Sunday Universe cools below 5 K
29/06/27 Tuesday Growth of large galaxies slows
2/07/27 Friday 1/2 the age of the Universe
5/07/27 Monday Alpha Centauri forms. Closest star system to the Sun.
7/07/27 Wednesday Alnitak forms. Left star of the Orion's Belt.
13/07/27 Tuesday Milky Way starts spiralizing
15/07/27 Thursday Age of an average earth-like planet
21/07/27 Wednesday 61 Cygni forms
26/07/27 Monday Dark energy overtakes gravity. Universe's expansion rate starts to accelerate.
31/07/27 Saturday Tau Ceti forms
8/08/27 Sunday Solar nebula starts collapsing
8/08/27 Sunday Milky way becomes a spiral galaxy
16/08/27 Monday Gliese 570 forms
25/08/27 Wednesday Proxima Centauri forms. Closest star to the Sun.
29/08/27 Sunday SN 2005ap supernova. Brightest supernova ever observed.
2/09/27 Thursday The Sun forms
2/09/27 Thursday Proto-earth forms. Planets, asteroids and comets form from the Sun's protoplanetary disk.
3/09/27 Friday Formation of the Moon. Theia impacts Earth, the Moon forms from the coalesced debris.
6/09/27 Monday Oceans form on Earth. Asteroids bring water to Earth.
6/09/27 Monday First known minerals. Zircons form at Jack Hills, Australia.
10/09/27 Friday Mintaka forms. Right star of the Orion's Belt.
11/09/27 - 19/09/27 Saturday - Sunday Life emerges on Earth
14/09/27 - 22/09/27 Tuesday - Wednesday Late Heavy Bombardment
14/09/27 Tuesday Earliest known rock. (Aggregate of minerals).
17/09/27 Friday Greenstone rock belt
22/09/27 Wednesday Oldest banded iron formation
27/09/27 Monday Vaalbara supercontinent emerges
30/09/27 Thursday Last universal ancestor. Split between bacteria and archaea.
30/09/27 Thursday Cyanobacteria fossils. Warrawoona, oldest fossil evidence of life on Earth.
5/10/27 Tuesday Compressional tectonics
6/10/27 Wednesday Barberton event. One of the largest impacts ever, left a 300 mi / 480 km crater.
8/10/27 Friday Ur supercontinent forms
8/10/27 Friday Anoxygenic photosynthesis developed by bacteria
11/10/27 Monday First land bacteria
13/10/27 Wednesday Cyanobacteria develop true photosynthesis. Life begins to produce oxygen.
16/10/27 Saturday Zeta Reticuli forms
16/10/27 Saturday Kenorland supercontinent emerges
16/10/27 Saturday Tides decline below 1000 ft / 300 m
18/10/27 Monday Vaalbara supercontinent breaks up
21/10/27 Thursday Major komatiite eruption
21/10/27 Thursday First eukaryotes emerge. Early estimate.
24/10/27 Sunday Oldest known giant carbonate platform
25/10/27 Monday Zeta Puppis forms
26/10/27 Tuesday Great Oxygenation event. Bacterially produced oxygen starts to accumulate in the atmosphere.
26/10/27 Tuesday Movement of the tectonic plates commences
29/10/27 Friday Suavjarvi impact event left oldest still recognizable crater
29/10/27 - 5/11/27 Friday - Friday Huronian glaciation. First snowball earth period.
1/11/27 Monday Continental red beds form
3/11/27 Wednesday Atmospheric oxygen level surpasses one percent
3/11/27 Wednesday Ozone layer forms
6/11/27 Saturday Earliest known eukaryote fossils (acritarchs)
6/11/27 Saturday Earliest multicellular life. Francevillian Group Fossil.
8/11/27 Monday Vredefort impact event. One of the largest impacts ever left a 190 mi/ 300 km crater.
11/11/27 Thursday Atmospheric oxygen level surpasses 15 percent
11/11/27 Thursday Natural nuclear reactor forms in Oklo, Gabon
13/11/27 Saturday Sudbury impact, event left a 160 mi / 260 km crater
14/11/27 Sunday Supercontinent Columbia forms
15/11/27 Monday Vishnu Basement Rocks. Oldest rocks in the Grand Canyon.
17/11/27 Wednesday Oldest sand dune ergs
19/11/27 Friday Mitochondria assimilate into eukaryotic cells
22/11/27 Monday Supercontinent Columbia breaks up
23/11/27 Tuesday Geologic platform covers expand
24/11/27 Wednesday Population of stromatolites rapidly rises
25/11/27 Thursday Procyon forms. Brightest star in Canis Minor.
27/11/27 Saturday Greenville orogeny starts
30/11/27 Tuesday Supercontinent Rodinia forms
30/11/27 Tuesday Bangiomorpha pubescens. First sexually reproducing organism.
1/12/27 Wednesday Population explosion of eukaryotes
2/12/27 Thursday Earliest flagellate protists
9/12/27 Thursday Population of stromatolites starts to decline
10/12/27 Friday Protista population explodes
11/12/27 Saturday Kaigas glaciation. Snowball earth period.
12/12/27 Sunday Supercontinent Rodinia breaks apart
12/12/27 - 14/12/27 Sunday - Tuesday Sturtian glaciation. Snowball earth period.
14/12/27 Tuesday Marinoan glaciation. Snowball earth period.
16/12/27 Thursday Fossilized worm impressions in China
16/12/27 Thursday Avalon explosion. Ediacaran fauna emerges.
17/12/27 Friday Cambrian explosion. Exponential diversification of life, most major animal phyla appear.
18/12/27 Saturday First trilobites
20/12/27 Monday 2:20 PG Plants and arthropods colonize the land
20/12/27 Monday 5:31 PG Ordovician extinction event. 60% of all species go extinct.
20/12/27 Monday 9:23 PTG First air-breathing animals
21/12/27 Tuesday 1:15 PTG First tetrapods
21/12/27 Tuesday 10:46 PTG First tree-like plants
22/12/27 Wednesday 5:07 PG Late Devonian extinction. 70% of all species go extinct.
23/12/27 Thursday 6:31 PG First amniotes
23/12/27 Thursday 12:52 PTG First reptiles
23/12/27 Thursday 10:23 PTG Atmospheric oxygen level peaks at 35%. Arthropods grow into unprecedented sizes.
24/12/27 Friday 1:33 PG Pangaea forms. Last supercontinent.
25/12/27 Saturday 8:40 PG Permian extinction event. Largest extinction event in history, 90-96% of all species go extinct.
25/12/27 Saturday 9:18 PG Sirius forms . Brightest star in the night sky.
25/12/27 Saturday 9:21 PTG First dinosaurs
26/12/27 Sunday 1:10 PG First mammals
26/12/27 Sunday 4:24 PTG Triassic extinction event. 75% of all species go extinct.
26/12/27 Sunday 11:23 PTG First giant sauropods
27/12/27 Monday 5:44 PG Pangaea splits into Laurasia and Gondwana
27/12/27 Monday 8:16 PG First stegosaurs
27/12/27 Monday 9:36 PTG First birds
28/12/27 Tuesday 3:57 PG Madagascar splits from Africa
28/12/27 Tuesday 1:28 PTG First flowering plants
28/12/27 Tuesday 1:28 PTG Laurasia and Gondwana begin to drift apart
29/12/27 Wednesday 4:42 PG Spinosaurus evolves. Largest of all carnivorous dinosaurs.
29/12/27 Wednesday 8:31 PG First bees
29/12/27 Wednesday 2:52 PTG Indian subcontinent splits from Gondwana
29/12/27 Wednesday 9:13 PTG Australia splits from Antarctica
30/12/27 Thursday 4:50 PG Tyrannosaurus rex evolves
30/12/27 Thursday 6:06 PG Cretaceous extinction event. 75% of all species vanish.
30/12/27 Thursday 9:54 PG First primates evolve
30/12/27 Thursday 1:05 PTG First modern birds
30/12/27 Thursday 4:15 PTG Indian subcontinent collides with Asia. Tiber and Himalayas start to rise.
30/12/27 Thursday 6:09 PTG Whales return to the water
30/12/27 Thursday 10:36 PTG Antarctic ice cap begins to grow
31/12/27 Friday 1:46 PG Grasslands become widespread
31/12/27 Friday 4:57 PG South America separates from Antarctica
31/12/27 Friday 7:29 PG First elephants. Eritreum melakeghebrekristosi.
31/12/27 Friday 12:34 PTG Divergence of great apes and lesser apes
31/12/27 Friday 2:28 PTG First bovids
31/12/27 Friday 5:01 PTG First large horses
31/12/27 Friday 6:55 PTG Rigel forms. Brightest star in Orion.
31/12/27 Friday 7:14 PTG Betelgeuse forms. Second brightest star in Orion.
31/12/27 Friday 8:11 PTG Last common ancestor humans and chimpanzees
31/12/27 Friday 8:13 PTG - 8:36 PTG Messinian salinity crisis. Strait of Gibraltar closes tight, Mediterranean Sea dries out.
31/12/27 Friday 9:27 PTG Australopithecus evolves
31/12/27 Friday 10:05 PTG Great American Interchange. Isthmus of Panama rises, North and South America join, extensive fauna exchange follows.
31/12/27 Friday 10:24 PTG Current ice age begins
31/12/27 Friday 10:36 PTG First members of the genus Homo appear
31/12/27 Friday 11:02 PTG First controlled use of fire by Homo erectus
31/12/27 Friday 11:30 PTG Last reversal of the Earth's magnetic field
31/12/27 Friday 11:35 PTG Yellowstone Caldera erupts
31/12/27 Friday 11:40 PTG Earliest human engravings. Zig-zag patterns on shells in Java.
31/12/27 Friday 11:48 PTG Earliest instances of burial
31/12/27 Friday 11:50 PTG Neanderthals evolve
31/12/27 Friday 11:52 PTG Anatomically modern humans appear in Africa
31/12/27 Friday 11:56 PTG Humans begin migrating out of Africa
31/12/27 Friday 11:57 PTG Toba supervolcanic eruption. Human population falls to 10,000.
31/12/27 Friday 11:58 PTG 23:58:40 Neanderthals go extinct
31/12/27 Friday 11:59 PTG 23:59:25 First domesticated dogs
31/12/27 Friday 11:59 PTG 23:59:39 Beginning of agriculture
31/12/27 Friday 11:59 PTG 23:59:46 Wheel invented
31/12/27 Friday 11:59 PTG 23:59:48 Writing invented
31/12/27 Friday 11:59 PTG 23:59:49 Great Pyramid
31/12/27 Friday 11:59 PTG 23:59:52 Iron Age begins
31/12/27 Friday 11:59 PTG 23:59:55 Julius Caesar
31/12/27 Friday 11:59 PTG 23:59:58 Galileo Galilei
31/12/27 Friday 11:59 PTG 23:59:59 Charles Darwin