When did Earth start looking like Earth?
Not all at once.
Hadean into early Archean · A planet still assembling its crust and oceans · Drawing. Not a photograph.
Generated interpretation of a cooling young Earth. Not a cartoon hellscape. Water and crust arrived as a process.
First look
Not all at once.
Wonder. Then look. This is not a test.
The oldest surviving mineral grains are zircons more than 4 billion years old.
They suggest water and crust earlier than the oldest remaining rock outcrops.
Impacts, magma, and a changing atmosphere are part of the same long becoming.
First look is enough. Keep looking is if you want more.
Keep looking
How would we know? Open only if you want the evidence.
Keep looking · The Moon
A giant impact is the leading explanation for the Moon. We do not have a photograph of that day. We have physics, isotopes, and a very old satellite.