The Asteroid that Flattened Mars

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The Asteroid that Flattened Mars 4.5
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Just about every two years, the planet Mars makes its closest approach to Earth... around 36 million miles. That's when we pack our robotic emissaries off to the Red Planet, timing their launches to spend the least effort to get there.

Some fly around it... snapping pictures...

Others land ... to sample its surface....

...a few to crawl around its canyons and craters.

These probes may pave the way for human explorers... and, perhaps permanent settlers... who'll dig deeper still... in search of answers to our most pressing question:

Did Mars develop far enough -- and stay that way long enough -- for life to arise?

And, if so, does anything live now within Mars' dusty plains... beneath its ice caps... or maybe somewhere underground?

Mars does not give up its secrets easily ... it's almost as if the little planet is embarrassed.

Over a century ago, a few observers thought they saw clues that Mars is alive.

In 1877, the Italian astronomer Giovanni Schiaparelli noted markings... which he saw as a latticework of lines. He called them "canali" in Italian... meaning nothing more than "shallow channels" in English.

American astronomer, Percival Lowell, found the lure of these features irresistible.

He saw Schiaparelli's channels as artificial canals. He speculated that they carried melting snow from the poles to the dry interior.

After all, on Earth, the Suez Canal had recently opened to ship traffic. The Panama Canal was beginning to be dug.

The Martian canals, Lowell said, were built by a sophisticated society confronting an environmental catastrophe on the grandest of scales.

Those Martians, he thought, must face urgent choice: move water across vast arid regions, or perish on an increasingly dry planet.

As the 19th Century gave way to the 20th, Lowell took his case to the public, in a series of three best-selling books.

And the public responded with... questions.

Who were these Martians, who had the means to remake an entire planet?

Some offered schemes for making contact. Giant mirrors would flash greetings... Light beams... Mental telepathy.

Many astronomers grew deeply skeptical... but Lowell's vision of a harsh, yet Earth-like planet endured in the public's imagination..

That vision was dealt harsh blow in 1964. The Mariner Four spacecraft ventured in for a closer look... And what it saw looked like the Moon.

Three more Mariners followed.

They found huge dormant volcanoes... the deepest and longest canyon in the solar system...but not a trace of life, present or past.

In the mid-1970's, two lander-orbiter robot teams, named Viking, took up residence at Mars.

Maybe the Martians were just hiding, so theVikings tested the soil for signs of life.

But all the evidence from Viking told us... Mars is not only barren... but in fact hostile to life.

It's no wonder. Martian air temperatures range from --20 degrees Fahrenheit to down below --200.

It's also very, very dry. The Sahara Desert on Earth is a rainforest, by comparison. If all of the water vapor in Mars' thin atmosphere fell as snow, it would make a layer of frost not thicker than your fingernail.

On Earth, impact craters erode over time from wind and water... and even volcanic activity.

On Mars, they can linger for billions of years.

But so can the imprint of riverbeds, lake bottoms and ocean shorelines... And the Viking orbiters saw a lot of them.

It's not hard to believe that a great deal of water once flowed here.

But where did all the water go?

To find out, scientists needed to do real field-geology on Mars. They needed rovers... travelling robots with tools and instruments.

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💬 Comments on the video
Author

Took him almost 15 minutes to get to the asteroid mentioned in the title. I therefore proclaim the title clickbait.

Author — Rob Jones

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Imagine if one day humans had the technology to jumpstart the magneticfield on Mars

Author — Shane Blewitt

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"But mars doesn't give up its secrets easily, it's almost as if it is --Too far away and difficult to reach with the proper equipment and manpower to do an appropriate examination--"

Author — Dinosaur Emperor

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After watching this, I am going to go watch Total Recall (The Original) now.

Author — fpshooterful

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Hopefully one day Earth will have intelligent life

Author — J Anderson

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The Canyon on Mars looks like an inprint froma Star trek ship. Maybe there was an ancient alien craft accident. I don't know. Haha

Author — Matthew Wild

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When I heard "little planet" I became very sad because it made me think of pluto :'(

Author — Owen Gemin

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I think humans are the descendants of Martians who only had enough time to evacuate a few who went straight to earth and out of them few only a certain amount could adjust to earth but died off quickly leaving only the generation who knew nothing about their generation before I dunno if what I said even makes sense but it sounds cool to me

Author — Thomas L

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You said that "earth is the only planet with water". And you're wrong.

Author — darthkotya

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It's a pity that how people made a lot of money just by making others believe that life existed on mars.

Author — Nhu Nhuhhii

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The desolate face of mars will prove to be the future of earth if we keep going down the road to perdition we're currently in. There's a good chance that our fossils will become the laughing stock for all true civilizations out in there in the cosmos that will survive long enough to discover whatever little has been left to remind the universe of our arrogant presence.

Author — x Disruptor

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Conspiracy theory from the Flat Mars Society.

Author — usernameagainahcrap

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Wherever cosmic event that created the asteroid belt (exploded planet?) could have evaporated most of the surface water and atmosphere on Mars, and caused the survivors to travel to Earth. Perhaps an electrical discharge on a planetary scale that hit the surface(Valles Marineris?)

Author — Ken Rik

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Imagining myself as an experience space farer...it is not hard to see why an intelligent species would move underground rather than be exposed to space. Atmospheres tend to be fragile.

Author — Jaded Cynic

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Last I heard Mars was a sphere and not flat! It’s bad enough hearing flatheads talking about Earth being flat!🤬

Author — Tam Bell

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Idk if I like “the virgin minerals” 😂😂

Author — nik sullivan

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Take a step back for a
moment and look at what’s on view: A planet that has clearly been involved in
an impact from another cosmic edifice …and a big one at that.


If the following
information is true, then Mars probably did have life. In fact, if you could
imagine Earth suffering an impact of the size that is evidenced all across the
Red Planet then Earth too would probably look like Mars; lifeless, scorched and
devoid of oceans and an atmosphere.


If you’re really
interested in discovering a different way to absorb the images of Mars (within
a new context) take a look at www.theimpactandexitevent.com
– no doubt you’ll be surprised at what you find there – especially when you see
how Valles Marineris, Olympus Mons and many other features on Mars were actually
created.


For example, take the
segment starting at 15.54 in the above video: The Nickel-Iron meteorite “sitting
out there on the surface” (as described in the video by the narrator) is
exactly what was predicted to be found on Mars – in other words a part of the remnants
of the iron-rich core of an incoming, colliding planet. Then, take a little
time to look at the rest of the ‘rocks’ shown sitting on the surface of Mars in
many NASA images. They too have a tale to tell, and an obvious source …which
was simply falling from the sky – but where did they come from?


Interested yet?


Go take a look at www.theimpactandexitevent.com
and prepare to have you’re current belief systems turned around, if you can
cope with that….

Regards,
Peter

Author — Peter McRae

Author

They said that Earth magnetic field is generated in the mantle of Earth. That is false. The Earth magnetic field is generated in the liquid iron core that surrounds the solid iron core.

Author — Réal Morrissette

Author

3/4 of the way in we FINALLY get to the asteroid. Too much fluff in this piece: not everything 'space' has to include an entire history of every mission. The graphics were okay but it seemed they were more an excuse to continue padding this content rather than to illustrate points.

Author — OsakaGuy

Author

Damn bro, you've been pumping out these educative videos for over 10 years already and still going?
Interesting how your voice dropped over the years lol

Author — XTSonic