Neil deGrasse Tyson

You speak of nitrogen as though it's neutral.

In fact, there are some sort of wine air replacement canisters that send nitrogen in as the air comes out.

But to me, nitrogen can make ammonia, nitrous oxide.

It's not like argon, where we're taught in chemistry class is just inert because it's got no electrons available.

Just nothing to do with it.

No interaction.

Nothing to do.

So why does nitrogen work for you?

I just never understood that chemically.

So different labs had different objectives in the samples that they were given.

Correct.

Is it possible that your priors, I don't mean to get philosophical on you, but is it possible that your prior expectations for what the sample is can bias your conclusions that you draw from it?

So is the Utah salt flats, and it landed in Utah.

So there.

We have samples to prove it's not from there.

I'm just saying, you land in Utah, and you say, we found salts up there.

Just to alert our listeners and viewers, when a geologist analyzes a sample, in most cases, the sample is destroyed when you're done.

Isn't that correct?

So I don't mean to diss your entire profession, but most people, when we look out into...

into space rocks.