Formation of the Earth

4600 million years ago
or 1112 meters to today

Geolo­gi­cal era: Hadean

Accord­ing to ever­ything we know, 4.6 billion years ago, the glowing fireb­all that was to become the Earth, the Sun and other planets were all formed from a cloud of gas.

The universe itself was already 9.2 billion years old. If the loca­tion of the begin­ning of space and time were marked on this time­line, it would be 2.2 km away from this point.

Some­where on the way to the next sign chemi­cal evolu­tion began to work. This term refers to the non-biolo­gi­cal combi­na­tion out of the ingre­dients of the primor­dial soup. At the next sign, chemi­cal evolu­tion beco­mes biolo­gi­cal evolu­tion. There, 122 meters away, evolu­tion — the deve­lo­p­ment of life — begins.

Evidence of the first life appeared just 500 million years after the solar system came into exis­tence. This gives us reason to think that the appearance of life is not as unli­kely as was once thought – provi­ding the condi­ti­ons are right.

The earth is extre­mely hot. Once the bombard­ment of meteo­ri­tes began to subside, the Earth cooled enough for a thin crust to be crea­ted. Volca­noes and geolo­gic outgas­sing crea­ted an atmo­s­phere, although it still had no oxygen. Some liquid water conden­sed from the expel­led gases.

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