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
June 9,2020

Washington, Jun 9: The defacement of Mahatma Gandhi's statue by unknown miscreants was a "disgrace", US President Donald Trump has said, days after it was vandalised with graffiti and spray painting during the nationwide protests against the custodial killing of African-American George Floyd.

The statue, which is across the road from the Indian Embassy, was vandalised on the intervening night of June 2 and 3, prompting the Indian embassy to register a complaint with the local law enforcement agencies.

The incident happened during the week of nationwide protests against the custodial killing of Floyd in Minneapolis on May 25.

"It was a disgrace," Trump made the brief comment at the White House on Monday when asked about the incident.

The Indian Embassy here has taken up the matter with the US Department of State for early investigation into the matter, as also with the Metropolitan Police and National Park Service.

It is working with the US Department of State, Metropolitan Police and National Park Service for expeditious restoration of the statue at the park.

The US president and First Lady Melania Trump, during their visit to India in February, had spent considerable time at the Gandhi Ashram in Ahmedabad. Prime Minister Narendra Modi had personally given them a tour of the historic place.

"The First Lady and I have just had a pleasure of visiting Mahatma Gandhi's Ashram, a few miles from here, where he launched the famous Salt March," Trump had said during his address at the Namaste Trump rally at the Motera Stadium in Ahmedabad on February 24. A day later, Trump and the first lady also laid a wreath at Raj Ghat in New Delhi.

Pictures of Trump and the first lady with Gandhi's spinning wheel during their visit to the Sabarmati Ashram in Ahmedabad are seen hanging on the walls of the White House.

Last week, top US lawmakers and the Trump Campaign condemned the vandalisation of the statue.

"Very disappointing," tweeted Kimberly Guilfoyle, advisor to Donald J Trump for President Inc. and National Chair of the Trump Victory Finance Committees.

North Carolina Senator Tom Tillis said, "It's disgraceful to see the defacing of the Gandhi statue" in Washington DC.

"Gandhi was a pioneer of peaceful protesting, demonstrating the great change it can bring. Rioting, looting and vandalising do not bring us together, he said.

Senator Marco Rubio said, "more evidence that violent radicals and run of the mill crazies have hijacked legitimate protests to create anarchy or for their own purposes."

Protests against the custodial killing of Floyd turned violent in the US and prestigious monuments were damaged. In Washington DC, protestors burnt a historic church and damaged monuments like the Lincoln Memorial.

US Ambassador to India Ken Juster apologised for the incident.

"So sorry to see the desecration of the Gandhi statue in Wash, DC. Please accept our sincere apologies," he said.

"Appalled as well by the horrific death of George Floyd and the awful violence and vandalism. We stand against prejudice & discrimination of any type. We will recover and be better," he said in a tweet last week.

One of the few statues of a foreign leader on a federal land in Washington DC, the statue of Gandhi was dedicated by former prime minister Atal Bihari Vajpayee in the presence of the then US president Bill Clinton on September 16, 2000, during his state visit to the US.

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Agencies
June 9,2020

Wuhan, Jun 9: China on Tuesday dismissed as "incredibly ridiculous" a Harvard study, which pointed to a surge in traffic outside Wuhan hospitals from August 2019 suggesting that the coronavirus hit the area far earlier than reported.

A whitepaper on coronavirus released by China on Sunday said the virus was first noticed on December 17 and Chinese virologists confirmed human-to-human transmission on January 19, prompting authorities to impose lockdown of Wuhan from January 23.

US President Donald Trump and leaders of several countries have accused China of not being transparent in reporting the deadly disease, leading to huge human casualties and economic crisis across the world.

The new study by Harvard researchers says satellite images show an increase in traffic outside five hospitals in Wuhan from late August to December.

The traffic spike coincided with a rise in online searches for information on symptoms like "cough" and "diarrhoea".

China said the study was "ridiculous" and based on "superficial" information, BBC reported.

It is believed that the virus first appeared in China some time in November. Authorities reported a cluster of pneumonia cases with an unknown cause to the World Health Organization (WHO) on December 31.

"Clearly, there was some level of social disruption taking place well before what was previously identified as the start of the novel coronavirus pandemic," Dr John Brownstein, who led the research, told ABC news.

The study has not been peer-reviewed.

The researchers examined commercial satellite data from outside five Wuhan hospitals, comparing data from late summer and autumn 2018 to the same time period in 2019.

In one case, researchers counted 171 cars parked at one of Wuhan''s largest hospitals, Tianyou Hospital, in October 2018.

Satellite data from the same time in 2019 showed 285 vehicles in the same place, an increase of 67 per cent.

A surge in online searches for words associated with the symptoms of coronavirus on the Chinese search engine Baidu seemed to emerge at the same time.

"This is all about a growing body of information pointing to something taking place in Wuhan at the time," Dr Brownstein said.

"Many studies are still needed to fully uncover what took place and for people to really learn about how these disease outbreaks unfold and emerge in populations. So this is just another point of evidence," he said.

Asked for her reaction at the media briefing, Chinese Foreign Ministry spokeswoman Hua Chunying dismissed the findings as "incredibly ridiculous".

"I think it is ridiculous, incredibly ridiculous, to come up with this conclusion based on superficial observations such as traffic volume," she said.

"(I have) Not seen the research you mentioned. If the conclusion is drawn based on traffic volumes (and) other superficial observations, it won’t be a sound conclusion," she said and referred to the allegations about the COVID-19 originating from the Wuhan Institute of Virology (WIV) by Trump.

"That allegation was proved to be wrong," she said.

When pointed out that China says it respects science based inquiry and Harvard is one of the top universities in the world, Hua said, "on the origin of virus there are lot of conspiracy theories against China”.

"That is very unfair. At the moment, the pressing task is to enhance coordination to contain the spread of the virus. Someday, I am sure the truth will be out. China deserves a fair and objective evaluation," she said and referred to the whitepaper released by the Chinese government detailing evolution of coronavirus in Wuhan and how Beijing handled the situation.

Recently, the World Health Assembly (WHA), the decision-making body of Geneva-based World Health Organization (WHO), passed a resolution to probe the origin of the virus. China also backed the resolution.

As of Monday, the overall confirmed cases on the mainland had reached 83,043, including 58 patients who were still being treated, with no one in severe condition, China’s National Health Commission, (NHC) said.

Altogether 78,351 people had been discharged after recovery and 4,634 people had died of the disease, it said.

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News Network
May 11,2020

Kabul, May 11: Four back-to-back roadside bombs exploded in a northern district of Afghanistan's capital Kabul on Monday, wounding four civilians including a child, police said. Kabul police spokesman Ferdaws Faramarz said a clearance team was at the site of the attacks.

Militants have carried out several roadside bombings and rocket attacks in Kabul and other parts of the country in recent weeks, but Monday's four consecutive explosions appeared to be the first coordinated effort for some months.

The Taliban has not carried out any large attacks in the city since they signed a landmark withdrawal deal with the US in February, meant to pave the way for peace in the country. No group has claimed the attacks. The explosions come as authorities are trying to impose a lockdown in the capital to curb the spread of coronavirus in the country.

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