Betül Kaçar

Look at this feast life created with all the leftovers.

And we know it's a very iron-rich planet right early on.

And then with oxygen, what happens?

What happens with oxygen?

And iron, you get rust.

Exactly.

So you're fried.

And we see that in the rock records.

That's how also we understand that our planet has gone through such revolution.

Exactly.

And by the way, that knowledge is also only like 30, 40 years old, right?

Like we did not know that microbes are able to leave a mark behind.

It comes back to a study from the University of Wisconsin-Madison.

Stanley Tyler, as he was doing, you know, what a good geologist does, you know, FA and FO.

And he was just hiking around and he came across with these iron deposits, some rock formations that are different than the others near Gunflint Church, which is the Canadian border.

And he wanted to understand this.

And he collaborates with a scientist at MIT and they are able to do all kinds of electro, you know,

basically relying on the radiation technology, not only date the rock, but understand that there's a microbe here, which completely transforms our understanding.

Because if you think about it, I'm going back to Darwin, even he contemplated with about origin of life in the past, just maybe once or twice, some warm little pond, whatever.

But his biggest dilemma was that if everything comes from an ancestor, where is the ancestor of the ancestor?