| 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 |
2:20 a.m. |
Plants and arthropods colonize the land
|
| 2025-12-20 |
Saturday |
5:31 a.m. |
Ordovician extinction event. 60% of all species go extinct.
|
| 2025-12-20 |
Saturday |
9:23 p.m. |
First air-breathing animals
|
| 2025-12-21 |
Sunday |
1:15 p.m. |
First tetrapods
|
| 2025-12-21 |
Sunday |
10:46 p.m. |
First tree-like plants
|
| 2025-12-22 |
Monday |
5:07 a.m. |
Late Devonian extinction. 70% of all species go extinct.
|
| 2025-12-23 |
Tuesday |
6:31 a.m. |
First amniotes
|
| 2025-12-23 |
Tuesday |
12:52 p.m. |
First reptiles
|
| 2025-12-23 |
Tuesday |
10:23 p.m. |
Atmospheric oxygen level peaks at 35%. Arthropods grow into unprecedented sizes.
|
| 2025-12-24 |
Wednesday |
1:33 a.m. |
Pangaea forms. Last supercontinent.
|
| 2025-12-25 |
Thursday |
8:40 a.m. |
Permian extinction event. Largest extinction event in history, 90-96% of all species go extinct.
|
| 2025-12-25 |
Thursday |
9:18 a.m. |
Sirius forms . Brightest star in the night sky.
|
| 2025-12-25 |
Thursday |
9:21 p.m. |
First dinosaurs
|
| 2025-12-26 |
Friday |
1:10 a.m. |
First mammals
|
| 2025-12-26 |
Friday |
4:24 p.m. |
Triassic extinction event. 75% of all species go extinct.
|
| 2025-12-26 |
Friday |
11:23 p.m. |
First giant sauropods
|
| 2025-12-27 |
Saturday |
5:44 a.m. |
Pangaea splits into Laurasia and Gondwana
|
| 2025-12-27 |
Saturday |
8:16 a.m. |
First stegosaurs
|
| 2025-12-27 |
Saturday |
9:36 p.m. |
First birds
|
| 2025-12-28 |
Sunday |
3:57 a.m. |
Madagascar splits from Africa
|
| 2025-12-28 |
Sunday |
1:28 p.m. |
First flowering plants
|
| 2025-12-28 |
Sunday |
1:28 p.m. |
Laurasia and Gondwana begin to drift apart
|
| 2025-12-29 |
Monday |
4:42 a.m. |
Spinosaurus evolves. Largest of all carnivorous dinosaurs.
|
| 2025-12-29 |
Monday |
8:31 a.m. |
First bees
|
| 2025-12-29 |
Monday |
2:52 p.m. |
Indian subcontinent splits from Gondwana
|
| 2025-12-29 |
Monday |
9:13 p.m. |
Australia splits from Antarctica
|
| 2025-12-30 |
Tuesday |
4:50 a.m. |
Tyrannosaurus rex evolves
|
| 2025-12-30 |
Tuesday |
6:06 a.m. |
Cretaceous extinction event. 75% of all species vanish.
|
| 2025-12-30 |
Tuesday |
9:54 a.m. |
First primates evolve
|
| 2025-12-30 |
Tuesday |
1:05 p.m. |
First modern birds
|
| 2025-12-30 |
Tuesday |
4:15 p.m. |
Indian subcontinent collides with Asia. Tiber and Himalayas start to rise.
|
| 2025-12-30 |
Tuesday |
6:09 p.m. |
Whales return to the water
|
| 2025-12-30 |
Tuesday |
10:36 p.m. |
Antarctic ice cap begins to grow
|
| 2025-12-31 |
Wednesday |
1:46 a.m. |
Grasslands become widespread
|
| 2025-12-31 |
Wednesday |
4:57 a.m. |
South America separates from Antarctica
|
| 2025-12-31 |
Wednesday |
7:29 a.m. |
First elephants. Eritreum melakeghebrekristosi.
|
| 2025-12-31 |
Wednesday |
12:34 p.m. |
Divergence of great apes and lesser apes
|
| 2025-12-31 |
Wednesday |
2:28 p.m. |
First bovids
|
| 2025-12-31 |
Wednesday |
5:01 p.m. |
First large horses
|
| 2025-12-31 |
Wednesday |
6:55 p.m. |
Rigel forms. Brightest star in Orion.
|
| 2025-12-31 |
Wednesday |
7:14 p.m. |
Betelgeuse forms. Second brightest star in Orion.
|
| 2025-12-31 |
Wednesday |
8:11 p.m. |
Last common ancestor humans and chimpanzees
|
| 2025-12-31 |
Wednesday |
8:13 p.m. - 8:36 p.m. |
Messinian salinity crisis. Strait of Gibraltar closes tight, Mediterranean Sea dries out.
|
| 2025-12-31 |
Wednesday |
9:27 p.m. |
Australopithecus evolves
|
| 2025-12-31 |
Wednesday |
10:05 p.m. |
Great American Interchange. Isthmus of Panama rises, North and South America join, extensive fauna exchange follows.
|
| 2025-12-31 |
Wednesday |
10:24 p.m. |
Current ice age begins
|
| 2025-12-31 |
Wednesday |
10:36 p.m. |
First members of the genus Homo appear
|
| 2025-12-31 |
Wednesday |
11:02 p.m. |
First controlled use of fire by Homo erectus
|
| 2025-12-31 |
Wednesday |
11:30 p.m. |
Last reversal of the Earth's magnetic field
|
| 2025-12-31 |
Wednesday |
11:35 p.m. |
Yellowstone Caldera erupts
|
| 2025-12-31 |
Wednesday |
11:40 p.m. |
Earliest human engravings. Zig-zag patterns on shells in Java.
|
| 2025-12-31 |
Wednesday |
11:48 p.m. |
Earliest instances of burial
|
| 2025-12-31 |
Wednesday |
11:50 p.m. |
Neanderthals evolve
|
| 2025-12-31 |
Wednesday |
11:52 p.m. |
Anatomically modern humans appear in Africa
|
| 2025-12-31 |
Wednesday |
11:56 p.m. |
Humans begin migrating out of Africa
|
| 2025-12-31 |
Wednesday |
11:57 p.m. |
Toba supervolcanic eruption. Human population falls to 10,000.
|
| 2025-12-31 |
Wednesday |
11:58 p.m. |
23:58:40 Neanderthals go extinct
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:25 First domesticated dogs
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:39 Beginning of agriculture
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:46 Wheel invented
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:48 Writing invented
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:49 Great Pyramid
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:52 Iron Age begins
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:55 Julius Caesar
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:58 Galileo Galilei
|
| 2025-12-31 |
Wednesday |
11:59 p.m. |
23:59:59 Charles Darwin
|