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If life began on Mars, it probably began around the same time

that it began on Earth, so three and a half four billion years ago but on earth so kind of paradoxically it's much harder to look back in time because earth's active it's got weather it's got you know volcanoes, plate tectonics, all this stuff. So the surface is constantly being renewed and so it's very, very hard to get samples from Earth of Earth as it was three and a half to four billion years ago.

Whereas on Mars, it stopped being geologically active about three and a half billion years ago. So it's been in deep freeze and so these river deltas that perseverance is roving across now are pristine river deltas from three and a half billion years ago, their time capsules.

So it might be easier to understand the origin of life if it began on Mars.

It might be much easier to do so than it is on our own planet.

Welcome to the pretty intense podcast. We're getting into a realm today that is truly one of my favorite realms to talk about.

I'm the most fascinated by probably that in psychology.

But in fact, we have, we kind of enter into a little bit of those realms,

because within the realm of physics,

we have Brian Cox on the show today,

who's a British rock star physicist.

Theory of anything started with an idea.

We talked about black holes, consciousness, space and time,

fractals, like so many areas of physics and science in the universe that I just I just love it and as we learn and understand more and more about our universe we know our role in it and know how to live our lives and so that's why I love it so much.

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