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