yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Neil deGrasse Tyson Talks Life on Mars | StarTalk


2m read
·Nov 11, 2024

Uh, Larry Wour had a question for me. He was—he was like totally there too. Let's find out.

So, let me ask you this: um, Mars, is there a possibility that there could have been— I don't mean microbial life, but I mean actual intelligent, like human life on Mars at one time?

I gone—gone now. I say yes—gone now—now extinct—now extinct. I mean, could Mars have been inhabitable for a variety of reasons? Maybe the atmosphere is different, it's all broken down, all that kind of stuff. So I think about that often.

And some people think life on Earth may have started at Mars. And yeah, they—you get panspermia, it's called. Meteorites coming over, yeah—yeah—yeah, stowaway microbes.

See, I know a little B stuck in a thing coming across the planets. Starts here, spawns there.

So here's the interesting thing about civilization, um, on Earth: mhm, if all humans left Earth today, you can ask how long would you have to wait before there wasn't a trace of our existence here?

MH: You'd have to wait until the continents subducted, bringing entire cities with them into the lower levels of our— the Earth's crust.

And in those zones, it's so hot everything melts back, and it gets spewed out of a volcano again. What's the time frame, uh, for that?

Millions of years.

Millions of years is not that long.

Okay, so now watch: right, Mars is not as geologically active as Earth.

Now, now, but you have to go way, way far back—millions of years? No, billions.

Billions? Oh, so now you're getting into billions—billions—billions—billions.

So I think it's unlikely on Mars we would—we would see settlements along the riverbanks that are now completely dry.

There would be—if why would you lose a city but still have the dried riverbed that's there? That doesn't— that doesn't play right.

If you're going to— but we were relating it to what's here though.

Yes, what—how else can you do it?

I mean, there an alien city that evaporates when they’re done with it?

I mean, I—[Music]—don't evaporating cities like self-destruct.

That's cool.

It's cool, but not likely—not cool, but not likely—precisely.

More Articles

View All
Flipping and compressing a graph
The graph of y is equal to the absolute value of x is reflected across the x-axis and then compressed vertically by a factor of 8⁄3. What is the equation of the new graph? All right, so let’s think about this step by step. If I start, and I’m just going …
Matter and energy in food webs | Middle school biology | Khan Academy
In this video, we’re going to talk about food webs, which is really just a way of picturing how all of the matter and how all of the energy flows inside of an ecosystem. Now, when I talk about matter, I’m talking about the atoms in an ecosystem, the molec…
Derivatives of inverse functions: from equation | AP Calculus AB | Khan Academy
Let ( F(x) ) be equal to ( 12x^3 + 3x - 4 ). Let ( H ) be the inverse of ( F ). Notice that ( F(-2) ) is equal to (-14) and then they’re asking us what is ( H’(-14) ). If you’re not familiar with how functions and their derivatives relate to their invers…
Warren Buffett: How to Calculate the Instrinsic Value of a Stock
Okay, here we go. In this video, I’m going to take the time to explain exactly how Warren Buffett calculates the intrinsic value of a stock. We’ll hear him explain it, and then we’ll run through a full example in the second half of the video so you can fo…
Charlie Munger: 24 Standard Causes of Human Misjudgment
Well, I am very interested in the subject of human misjudgment, and Lord knows I’ve created my well, a good bit of it. I don’t think I’ve created my full statistical share, and I think that one of the reasons was that I tried to do something about this te…
The Geo Bee: A 30 Year History | National Geographic
Good morning, ladies and gentlemen, and welcome to the first National Geography Bee! Finally, [Applause] anniversaries are important; they are an invitation, in many ways, to look back and celebrate where we’ve been. To have started out as one of over fi…