This speculative SpaceX timeline reveals roughly when, where, and how Elon Musk plans to colonise Mars

[CharonY]

I think my overarching point is that we should make certain that in 150 years we are still in a good enough shape to have sufficient surplus to send something to Mars. Right now, we are doing a decent job ignoring some huge challenges coming our way. And these challenges will not be solved by going elsewhere.

[Prometheus]

28 minutes ago, CharonY said:

I think my overarching point is that we should make certain that in 150 years we are still in a good enough shape to have sufficient surplus to send something to Mars.

Are they mutually exclusive? The resources required to get to Mars would be largely financial. We've enough food to feed the world but there is a problem in distribution. The threat of nuclear war a problem of political brinkmanship. The way to ameliorate global warming depends on political will and social change. I'm not sure even colossal financial resources could change much of this.

[CharonY]

6 minutes ago, Prometheus said:

Are they mutually exclusive? The resources required to get to Mars would be largely financial. We've enough food to feed the world but there is a problem in distribution. The threat of nuclear war a problem of political brinkmanship. The way to ameliorate global warming depends on political will and social change. I'm not sure even colossal financial resources could change much of this.

Not necessarily. While it does not have to be a zero sum game per se, some of the earlier arguments from Musk and co (not necessarily from folks on the forum) was that that it will somehow safeguard the human species. That thinking implies that if one manages to survive there we are safe from catastrophes on Earth, and I find this highly problematic for a number of reasons. What it has, however, is an imbalance (in my mind) in the hype/cost ratio. You can enthuse folks easier to send something to Mars than to take a closer look at our oceans. 

In my mind the latter is orders of magnitude more interesting and relevant. It is like looking for greener grass in a far away desert, so to speak. I support the sense of adventure, sure. However, I wish some more of it would go toward the place we need to maintain in the first place. With regard to financial resources, we could have develop technologies much earlier to mitigate CO2 issues. But there was no market for it. Now we are late. We could have funded research into alternatives to antibiotics decades ago. Now we are running out of options (well they start funding novel approaches now, but it is always after the house is halfway burnt down). I do agree that it is not only funding, but also political overlay to it, but some of it is also simply down to funding.

[beecee]

http://www.xinhuanet.com/english/2018-05/15/c_137180976.htm

China Focus: China sets record for longest stay in self-contained moon lab

Source: Xinhua| 2018-05-15 19:37:23|Editor: ZX

 

 

 

Volunteers prepare to leave the Yuegong-1, or Lunar Palace 1, at Beihang University in Beijing, capital of China, May 15, 2018. Chinese volunteers have completed a one-year test living in a simulated space lab in Beijing, setting a new record for the longest stay in a self-contained cabin. The total length of the test, which started on May 10th last year, reached 370 days, with the third stage accounting for 110 days. Liu Hong, chief designer of Yuegong-1, said the test marks the longest stay in a bioregenerative life support system (BLSS), in which humans, animals, plants and microorganisms co-exist in a closed environment, simulating a lunar base. (Xinhua/Ju Huanzong)

BEIJING, May 15 (Xinhua) -- Chinese volunteers have completed a one-year test living in a simulated space lab in Beijing, setting a new record for the longest stay in a self-contained cabin.

Four students, two males and two females, emerged from the Yuegong-1, or Lunar Palace 1, at Beihang University to the applause of academicians, researchers and fellow students Tuesday.

The total length of the test, which started on May 10 last year, was 370 days, with the third stage accounting for 110 days.

Liu Hong, chief designer of Yuegong-1, said the test marked the longest stay in a bioregenerative life support system (BLSS), in which humans, animals, plants and microorganisms co-exist in a closed environment, simulating a lunar base. Oxygen, water and food are recycled within the BLSS, creating an Earth-like environment.

"The system is 98 percent self-sufficient. It has been stable and effective in providing life support for its passengers," she said.

A total of eight volunteers, students at Beihang University, took turns living in the cabin, which measures around 150 square meters.

The BLSS is a critical piece of technology required for long-term human stays on the moon or other extraterrestrial bodies, Liu said.

Researchers will evaluate the physical and mental conditions of volunteers, study test results, and explore smaller BLSS equipment which could be loaded onto space labs, and moon and Mars probes in the future.

"The test has important implications for human endeavors to achieve long-term stays outside Earth. The experience, technology and findings will be conducive for future space exploration efforts," said Wang Jun, an academician from the Chinese Academy of Engineering.

The BLSS can also be applied in areas where water is scarce and oxygen levels are low, he said.

The previous record was set in the Soviet Union, where three people stayed for 180 days in a similar closed ecosystem in the early 1970s.

FULL RECYCLING

The cabin consists of two plant cabins and a comprehensive cabin. The volunteers grow wheat, strawberries and other plants. There is small amount of pre-stored pork and chicken. The main vitamin source for the volunteers are yellow meal worms raised in the cabin. They are roasted, ground and mixed with flour to make buns and pancakes.

"The system worked well. There were a lot of variety of vegetables to eat," said volunteer Gao Han, a student in his third year pursuing a Master's degree in biomedicine.

"If there is any improvement needed, I would want to eat eggs, which were not available in the lab. It would be better if there were more sources of animal fat," he said.

Volunteers drank water from a purifying machine. "Water is limited but sufficient for us to use for washing, cleaning vegetables and drinking every day," he said.

"It was quite a challenge. I miss sunshine so much," he said. Chief designer Liu said keeping the students busy with gardening could be good therapy to cope with isolation.

The volunteers had access to the Internet. They could also play chess, do yoga and ride exercise bikes. They also studied English and listened to the radio. Volunteers had to take pyschological and health checks every week, said Liu Dianlei, another volunteer.

"Isolation kept us focused on our papers and experiments. We also sought fun. I performed little bit of magic to entertain the group," he said.

FUTURE GOALS

Professor Liu said the BLSS system had proven to function well over a long period of time. Researchers have also explored the mechanism in which light affects human's biological rhythms and emotions. They also improved technology for vertical planting.

"This is not the end, but a new starting point to continue to explore space," Liu said.

China has made great progress in space exploration in recent years. A manned docking in space was carried out in 2012, followed by a rover landing on the moon a year later.

China plans to launch the Chang'e-5 lunar probe in 2019, which is expected to bring lunar samples back to the Earth, according to Pei Zhaoyu, deputy director of the Lunar Exploration and Space Program Center of the China National Space Administration.

https://gbtimes.com/lunar-palace-1-a-look-inside-chinas-self-contained-moon-training-habitat?cat=business

The above contains a short video re the efforts by the Chinese in this proposed Lunar habitat.