TIL: We Could Give Mars Our “Cooties” | Today I Learned

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Catching “cooties”—it’s not just fodder for playground politics. What if a single hair on your head, the oils on your fingertips, or one of the thousands of droplets of saliva you expel each time you cough had the potential to jeopardize a multibillion-dollar interplanetary mission?
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Love crazy facts? We do too. Get ready to amaze your friends with some of the strangest facts you’ve ever heard. National Geographic explorers tell you new, obscure, and amazing things about the world (and beyond).

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Catching “cooties”—it’s not just fodder for playground politics. What if a single hair on your head, the oils on your fingertips, or one of the thousands of droplets of saliva you expel each time you cough had the potential to jeopardize a multibillion-dollar interplanetary mission? This fear hits far too close to home for every NASA scientist who helps build the Mars rovers or any other instrument destined for outer space.

Mars hasn’t received an “Earth vaccine,” so if too much earthly biological material gets transferred from the scientists to the rovers to Mars, those Earth germs could have devastating effects—not only on the success of NASA’s missions but to the red planet as a whole.

NASA mechanical engineer Kobie Boykins, who helped design all four rovers that have landed on Mars, explains how we could infect Mars and what precautions NASA takes against doing so, and he reminds us what happened in the past when scientists didn’t keep their “”cooties”” to themselves.

Read more about making Mars home in the latest issue of National Geographic magazine and watch MARS, the global event series on National Geographic.
http://www.nationalgeographic.com/magazine/2016/11/spacex-elon-musk-exploring-mars-planets-space-science/
http://channel.nationalgeographic.com/mars/

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FOOTAGE COURTESY: NASA

TIL: We Could Give Mars Our “Cooties” | Today I Learned

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Don’t Build a Metal Foundry Until you See This First

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Updates, improvements, and all your questions answered about the Mini Metal Foundry. I had no idea so many of you would actually be building this!

Common materials in the Mini Metal Foundry

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Frozen Elsa TURNS EVIL! w/ Spiderman Maleficent Joker Pink Spidergirl Ariel! Superhero Fun IRL :)

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Frozen Elsa TURNS EVIL! w/ w/ Spiderman Maleficent Joker Pink Spidergirl Ariel! Superhero Fun IRL in Real Life 🙂

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جو شو | الحلقة ٢٢ | بيمشي بالشتيمة

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#ثلج_ساخن ٢ | أشواق و دموع

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Michael Shannon Went Down an iBooks Rabbit Hole

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Michael Shannon doesn’t use a smartphone, but when he was given one to use on a movie set he discovered the joy of the first 20 pages of electronic books.

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Michael Shannon Went Down an iBooks Rabbit Hole
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Dishonored 2: The Most Brutal Power Combinations

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A showcase of some deadly power combinations you can utilize in your Dishonored 2 playthrough.

Dishonored 2 Review

Dishonored 2 Graphics Comparison: PS4 vs. Xbox One vs. PC

The First 12 Minutes of Dishonored 2 as Emily (1080 60fps)

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