NASA proposes 'Ice Home' design for future Mars explorers

December 30, 2016

Washington, Dec 30: The first explorers on Mars may build their homes using the ice beneath their feet to effectively protect them from the harsh martian environment and provide a safe place to call home, NASA scientists say.

iceWhen astronauts set foot on Mars, they may stay for months rather than days as they did during Apollo missions to the Moon.

The surface of Mars has extreme temperatures and the atmosphere does not provide adequate protection from high-energy radiation, NASA said.

These explorers will need shelters to effectively protect them from the harsh Martian environment and provide a safe place to call home.

According to researchers at NASA's Langley Research Centre in Virginia, the best building material for a new home on Mars may lie in an unexpected material: ice.

"Mars Ice Dome," is one of many potential concepts for sustainable habitation on the red planet in support of the agency's journey to Mars, NASA researchers said.

"After a day dedicated to identifying needs, goals and constraints we rapidly assessed many crazy, out of the box ideas and finally converged on the current Ice Home design, which provides a sound engineering solution," said Kevin Vipavetz, Langley senior systems engineer.

The "Mars Ice Home" is a large inflatable torus, a shape similar to an inner tube, that is surrounded by a shell of water ice.

The Mars Ice Home design has several advantages that make it an appealing concept, according to NASA. It is lightweight and can be transported and deployed with simple robotics, then filled with water before the crew arrives.

It incorporates materials extracted from Mars and because water in the Ice Home could potentially be converted to rocket fuel for the Mars Ascent Vehicle, the structure itself doubles as a storage tank that can be refilled for the next crew.

Another critical benefit is that water, a hydrogen-rich material, is an excellent shielding material for galactic cosmic rays – and many areas of Mars have abundant water ice just below the surface.

Galactic cosmic rays are one of the biggest risks of long stays on Mars. This high-energy radiation can pass right through the skin, damaging cells or DNA along the way that can mean an increased risk for cancer later in life or, at its worst, acute radiation sickness.

Space radiation is also a significant challenge for those designing potential Mars outposts. For example, one approach would envision habitats buried underneath the Martian surface to provide radiation shielding.

However, burying the habitats before the crews arrive would require heavy robotic equipment that would need to be transported from Earth.

Comments

Demetrio Rothe…
 - 
Wednesday, 8 Feb 2017

Hello, 
I am writing from Space Exploration Architecture '?we are the team who designed Mars Ice House, the winner of NASA's Centennial Challenge for a 3D-Printed Habitat on Mars.

I noticed you posted a great article earlier this month about our project, Mars Ice Home. Could you please credit our project in your article by including a reference back to our website?
Here is the link: http://www.spacexarch.com/mars-ice-home/

Kind Regards,
Demetrio Rothenhausler

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News Network
April 17,2020

Paris, Apr 17: The number of coronavirus-related deaths in France has increased by 753 to 17,920 over the past 24 hours, with the total case count now standing at 108,847, Jerome Salomon, the head of the state health agency, said on Thursday.

On Wednesday, the country reported a total of 106,206 cases, including a record 1,438 new fatalities. Salomon specified that it was not the daily death toll, as the data had been compiled over the last three-day weekend.

"The total number of victims since March 1 is 17,920," Salomon said at a briefing on Thursday.
He noted that 11,060 of them had died in hospitals, and 6,860 others in social and medical-social facilities.

President Emmanuel Macron on Monday extended nationwide movement restrictions, which had been introduced due to the epidemic, until May 11. Afterwards, the country is set to gradually reopen kindergartens, schools and universities.

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News Network
June 2,2020

Jun 2: A new female billionaire has emerged from one of Asia's most-expensive breakups.

Du Weimin, the chairman of Shenzhen Kangtai Biological Products Co., transferred 161.3 million shares of the vaccine maker to his ex-wife, Yuan Liping, according to a May 29 filing, immediately catapulting her into the ranks of the world's richest.

The stock was worth $3.2 billion as of Monday's close.

Yuan, 49 this year, owns the shares directly, but signed an agreement delegating the voting rights to her ex-husband, the filing shows. The Canadian citizen, who resides in Shenzhen, served as a director of Kangtai between May 2011 and August 2018. She's now the vice general manager of subsidiary Beijing Minhai Biotechnology Co. Yuan holds a bachelor's degree in economics from Beijing's University of International Business and Economics.

Kangtai shares have more than doubled in the past year and have continued their ascent since February, when the company announced a plan to develop a vaccine to fight the coronavirus. They slipped for a second day Tuesday following news of the divorce terms, losing 3.1% as of 9:43 a.m. in Hong Kong and bringing the company's market value to $12.9 billion.

Du's net worth has now dropped to about $3.1 billion from $6.5 billion before the split, excluding his pledged shares.

The 56-year-old was born into a farming family in China's Jiangxi province. After studying chemistry in college, he began working in a clinic in 1987 and became a sales manager for a biotech company in 1995, according to the prospectus of Kangtai's 2017 initial public offering. In 2009, Kangtai acquired Minhai, the company Du founded in 2004, and he became the chairman of the combined entity.

China's rapidly growing economy has been an engine for the country's richest, and Du is not the only tycoon who's had to pay a steep price for a divorce. In 2012, Wu Yajun, at one point the nation's richest woman, transferred a stake worth about $2.3 billion to her ex-husband, Cai Kui, who co-founded developer Longfor Group Holdings Ltd. In 2016, tech billionaire Zhou Yahui gave $1.1 billion of shares in his online gaming company, Beijing Kunlun Tech Co., to ex-wife Li Qiong after a civil court settlement.

Sometimes, a goodbye can be time-consuming too. South Korean tycoon Chey Tae-won's wife filed a lawsuit in December asking for a 42.3% stake in SK Holdings Co. valued at $1.2 billion. That would make her the second-largest shareholder of the company should she win the case, which is still ongoing.

The most expensive divorce in history is that of Jeff and MacKenzie Bezos. The Amazon.com Inc. founder gave 4% of the online retailer to Mackenzie, who now has a $48 billion fortune and is the world's fourth-richest woman.

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News Network
April 27,2020

Seoul/South Korea, Apr 27: North Korean leader Kim Jong Un is "alive and well", a top security adviser to the South's President Moon Jae-in said, downplaying rumours over Kim's health following his absence from a key anniversary.
"Our government position is firm," said Moon's special adviser on national security Moon Chung-in, in an interview with CNN on Sunday. "Kim Jong Un is alive and well."

The adviser said that Kim had been staying in Wonsan -- a resort town in the country's east -- since April 13, adding: "No suspicious movements have so far been detected."

Conjecture about Kim's health has grown since his conspicuous absence from the April 15 celebrations for the birthday of his grandfather Kim Il Sung, the North's founder -- the most important day in the country's political calendar.

Kim has not made a public appearance since presiding over a Workers' Party politburo meeting on April 11, and the following day state media reported him inspecting fighter jets at an air defence unit.

North Korean leader Kim Jong Un was not gravely ill, two South Korean government sources said on Tuesday, following reports he had undergone a cardiovascular procedure and was now in "grave danger."

His absence unleashed a series of unconfirmed media reports over his condition, which officials in Seoul previously poured cold water on.

"We have nothing to confirm and no special movement has been detected inside North Korea as of now," the South's presidential office said in a statement last week.

South Korea's unification minister Kim Yeon-chul reiterated Monday that remained the case, adding the "confident" conclusion was drawn from "a complex process of intelligence gathering and assessment".

'Grave danger'

Daily NK, an online media outlet run mostly by North Korean defectors, has reported Kim was undergoing treatment after a cardiovascular procedure earlier this month.

Citing an unidentified source inside the country, it said Kim, who is in his mid-30s, had needed urgent treatment due to heavy smoking, obesity and fatigue.

Soon afterwards, CNN reported that Washington was "monitoring intelligence" that Kim was in "grave danger" after undergoing surgery, quoting what it said was an anonymous US official.

US President Donald Trump on Thursday rejected reports that Kim was ailing but declined to state when he was last in touch with him.

On Monday, the official Rodong Sinmun newspaper reported that Kim had sent a message of thanks to workers on the giant Wonsan Kalma coastal tourism project.

It was the latest in a series of reports in recent days of statements issued or actions taken in Kim's name, although none has carried any pictures of him.

Satellite images reviewed by 38North, a US-based think tank, showed a train probably belonging to Kim at a station in Wonsan last week.

It cautioned that the train's presence did not "indicate anything about his health" but did "lend weight" to reports he was staying on the country's eastern coast.

Reporting from inside the isolated North is notoriously difficult, especially regarding anything to do with its leadership, which is among its most closely guarded secrets.

Previous absences from the public eye on Kim's part have prompted speculation about his health.

In 2014 he dropped out of sight for nearly six weeks before reappearing with a cane. Days later, the South's spy agency said he had undergone surgery to remove a cyst from his ankle.

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