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5 Reasons Going To Mars is a TERRIBLE Idea | Answers With Joe

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Signup for your FREE trial to The Great Courses Plus here: http://ow.ly/FBE930gnLPV With both SpaceX and NASA ramping up plans to go to Mars, maybe it's time to consider the other side of the discussion - that traveling to Mars might be a terrible idea. Support me on Patreon! http://www.patreon.com/answerswithjoe Follow me at all my places! Instagram: https://instagram.com/answerswithjoe Snapchat: https://www.snapchat.com/add/answerswithjoe Facebook: http://www.facebook.com/answerswithjoe Twitter: https://www.twitter.com/answerswithjoe The Great Courses Plus is currently available to watch through a web browser to almost anyone in the world and optimized for the US market. The Great Courses Plus is currently working to both optimize the product globally and accept credit card payments globally. ============== LINKS LINKS LINKS https://www.engadget.com/amp/2017/10/27/getting-to-and-living-on-mars-will-be-hell-on-your-body/ Astronaut Cardiovascular disease study https://www.nature.com/articles/srep29901 https://www.theverge.com/2017/10/28/16549898/scott-kelly-pbs-exclusive-clip-year-in-space-walking-problems-zero-gravity http://discovermagazine.com/2010/oct/20-life-under-the-bubble https://www.vox.com/science-and-health/2016/9/30/13099898/mars-death-risk-illustrated https://news.nationalgeographic.com/2016/09/mars-journey-nasa-alien-life-protection-humans-planets-space/ ============== Issue number one: Radiation. Outside our protective magnetic sphere, space is a shooting gallery of solar radiation and cosmic rays that would wreak havoc on our bodies to a level that right now we can only speculate. And then there’s the 18 months you would spend on Mars, which doesn’t have a magnetosphere and a very thin atmosphere. Humans have never been exposed to this type of radiation for this long. It’s a problem we’ve never dealt with before, and it’s going to be a huge challenge to overcome. Number two: Extremely low air pressure. The Martian atmosphere has only 1% of the air pressure of Earth. Walking outside on Mars is not that much different from walking on the moon, from a life support systems perspective. The thin atmosphere is also a nightmare for landing on Mars. That’s why smaller rovers like Spirit and Opportunity used bizarre air bag systems to land and Curiosity, which was much heavier, had to use a combination of parachutes, thrusters, and a cable system to get there safely. So SpaceX’s vertical propulsive landing option is probably best for Mars, but this is something that’s never been done up to this point, so it’s hard to know what challenges there are in attempting this with the thinner atmosphere and lower gravity. Number 3: Perchlorates in the soil In the Biosphere 2 project, they grew their own food and struggled to have enough for everyone to eat. When they emerged at the end, many were malnourished and emaciated. In 2008, the Mars Phoenix lander found significant quantities of perchlorate in the Martian soil. Perchlorates are salt compounds that are often used in rocket propellants and they’re extremely harmful for humans. They interrupt the thyroid gland and prevent the body from absorbing iodine, which leads to aplastic anemia. That’s when your bone marrow can’t make new red blood cells. Red blood cells are what carry oxygen through the body. Minor problem. Or, if aplastic anemia isn’t your thing, you might get agranulocytosis, which prevents your body from making white blood cells. Chris McKay at the Ames Research Center said that if your backyard had this much perchlorate in the soil, it would be considered a superfund site. Basically Mars is a giant toxic waste dump. Number 4: The gravity problem Mars is smaller than Earth, with gravity only 38% of that you’re used to here. An average 150 pound person on Earth would weigh only 57 pounds on Mars. We do have some idea of what to expect from long-term zero gravity thanks to astronauts like Scott Kelly and Mikhail Kornienko, who just this year completed a year-long space mission. Although the record was set in 1995 by Valery Polyakov, who flew on the Mir space station for 437 days. And last but not least, number 5: The Contamination Problem We’ve talked in videos about the Fermi Paradox and the Drake Equation in the search for intelligent life in the universe. Because if life could form twice in one solar system, the potential for life in other solar systems, and intelligent life, becomes very significant. So one of the biggest problems when it comes to traveling to Mars is that we’re not just bringing ourselves… We’re bringing our microbes. The second we land on Mars, we have contaminated it.

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