Neil deGrasse Tyson

But of course, together now, life finds a way.

So, Harold, I remember, because I'm that old, back in the 90s, when we analyzed ALH... 84... 84001, something like that.

This potato-shaped meteorite on Earth, which was deduced that it came from Mars.

And I thought it was brilliant.

They found a little air inclusions within it and analyzed it.

It had the exact...

atmospheric composition of Mars.

So this rock came from Mars and there was no dispute about that.

But it also had some inclusions within it that if memory serves, it had oxidized minerals sitting right adjacent to non-oxidized minerals.

And

Typically, in any geologic environment that you have, it's either oxygen rich or not, right?

And if it's oxygen rich, then everything gets oxidized.

And if it's oxygen poor, then nothing is oxidized.

but life does both in the same vessel, right?

We inhale and oxidize our hemoglobin, and then the oxygen gets ripped away, hemoglobin goes back for more oxygen, so we have oxidized and non-oxidized molecules in the very same vessel.

So the fact that they were together on the rock would require you to believe

if you're going to explain it abiotically, that the rock was like over here for a while and was getting oxygenated, and then it rolled somewhere else where there was no oxygen, and then it had some other participating molecules.

You have to really Rube Goldberg your way into that answer.

Or it was breathing.

So with these inclusions at this new site on Mars, at the Chiava Falls site, if you find more than that, it might be really hard, if not impossible, to completely explain it abiotically.