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#51 2016-03-28 16:41:37

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,851

Re: 202*? and then there might be 2 stations in LEO

Cycler's are definitely the next step in a deep space habitat but the way I look at space stations is the more the merrier as that gives more oportunity to get more people into space and to get a great number of businesses providing services....If we up the flight rate we lower the cost.....

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#52 2016-03-28 23:00:27

Tom Kalbfus
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Registered: 2006-08-16
Posts: 4,401

Re: 202*? and then there might be 2 stations in LEO

SpaceNut wrote:

Cycler's are definitely the next step in a deep space habitat but the way I look at space stations is the more the merrier as that gives more oportunity to get more people into space and to get a great number of businesses providing services....If we up the flight rate we lower the cost.....

You can see by this chart that physical access to a cycler space station, is going to be limited.
some_possible_earth_mars_cyclers_by_tomkalbfus-d9wx78b.png
The Aldrin Cycler passes the Earth, once every 2.135 years, (780 days) the Earth/Mars transfer time is 146 days. I am thinking we would want one cycler, the 146 day transfer time should be from Mars to Earth, and save the other 634 days for getting to Mars, because if we use Mars Direct, the astronauts will be traveling on the outbound leg in a Mars hab. The Mars Hab will contain enough supplies to last the outbound leg, plus the entire surface stay on Mars. Then we have the Earth Return Vehicle, the purpose of it will be to match velocities with the cycler, it will just be big enough to carry all the astronauts, a few meals plus the rocks they collected to the cycler. the cycler arrives in the vicinity of Mars unmanned, but with supplies sufficient to get the astronauts back to Earth in comfort, and, just as in The Martian, the Earth Return Vehicle will have an Orion Capsule attacked to it, the Earth Return Vehicle would then depart the cycler and use its remaining fuel to alter its orbit from the cycler so that it intercepts the Earth's atmosphere, the capsule then seperates from the Earth Return vehicle with its load of Mars rocks and the astronauts, the lander portion burns up in the atmosphere, while the capsule orients its blunt heat shield for reentry and perhaps a splashdown after the parachutes are deployed.

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#53 2017-02-03 21:01:20

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 23,851

Re: 202*? and then there might be 2 stations in LEO

While the topic started about the possible breakup and one partner chosing to take there ball and go home I think we can open this up to having other stations put into orbit by others. It maybe that way if its not re-extended after 2024 again postponing its deorbit to after 2028....

Private space station coming soon? Company aiming for 2020 launch

axiom-1-module-iss.jpg

The builders of the Axiom International Commercial Space Station aim to enlarge the landscape of low-Earth orbit, to create what they view as a “historic shift” in human spaceflight.

Making a space outpost available to nations, organizations and individuals could help make living and working in Earth orbit commonplace and support the exploration of deep space, Axiom representatives said.

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#54 2019-02-05 18:59:27

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 23,851

Re: 202*? and then there might be 2 stations in LEO

Orion Span falls far short of funding goal to support its commercial space station ambitions

Orion Span claims it can launch a one-module space station, called Aurora Station, by 2022 for space tourism, but an equity crowdfunding campaign to support the company's plans fell far short of its goal.

aurora-station-879x485.jpg

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#55 2020-11-29 20:28:51

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 23,851

Re: 202*? and then there might be 2 stations in LEO

It ems that Russia is looking again to ending the partnership in space with Russia's Energia suggests building national space station

Its had a few mishaps and investigations into a leak found in the Russian component module and for some its after 2025 the modules are likely to keep breaking down.

Energia estimates potential expenses on supporting the ISS to be 10-15 billion rubles [$130-198 million likely, per year].

The new station, officially named the Russian orbital service station, is expected to have three to seven modules and may host a crew of two to four people.

The deputy director-general of Energia later specified that Russia is not planning to give up on the International Space Station (ISS).

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#56 2021-09-03 07:11:50

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 1,023

Re: 202*? and then there might be 2 stations in LEO

Russian cosmonauts find new cracks in ISS module
https://www.reuters.com/lifestyle/scien … 021-08-30/
"Superficial fissures have been found in some places on the Zarya module," Vladimir Solovyov, chief engineer of rocket and space corporation Energia, told RIA news agency. "This is bad and suggests that the fissures will begin to spread over time."

The space official has said previously that much of the International Space Station's equipment is starting to age and has warned there could be an "avalanche" of broken equipment after 2025.

the ISS was a wonderful machine

There is a Chinese Station, there will be other space stations.

but at this moment many scinetists and commentators in the news think the ISS might be nearing its end

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#57 2021-09-03 14:19:25

tahanson43206
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Registered: 2018-04-27
Posts: 8,029

Re: 202*? and then there might be 2 stations in LEO

For what one vote out of 8 billion might be worth, I'm in favor of re-designing the ISS for perpetual renewal.

The MIR and Tiangong model (and Skylab, come to think of it) are enough examples of experimental structures to satisfy most people.

It's time to start planning for perpetual life of space assets, and that means replace modules.  The vehicle combination (station) must be designed from the beginning to be refurbished.

If the Russian module is approaching end-of-life, that does not mean the station is.  It is possible it is the Nation that is becoming tired of holding up it's end of the bargain after so many changes over the decades.

If diplomacy has any value in this situation, I'd recommend attempting to persuade the Russians to renew their commitment to the joint endeavor.

The US long ago drove China away due to concerns about communism.  The obvious result is that the Chinese long ago abandoned any prospect of being partners in the space exploration enterprise.

The best I think we can hope for is to ** try ** for compatible docking equipment.

(th)

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#58 2021-09-03 17:27:02

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 23,851

Re: 202*? and then there might be 2 stations in LEO

Zarya module was launched on 20 November 1998 on a Russian Proton rocket followed by on 4 December 1998 to attach the Unity module. Zvezda was finally launched on 12 July 2000, docking with Zarya.

The fact that is showing its age means replacements should have been built to replace it if we want to keep this station going.

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#59 2021-09-06 18:33:40

Mars_B4_Moon
Member
Registered: 2006-03-23
Posts: 1,023

Re: 202*? and then there might be 2 stations in LEO

What will happen in the next 9 years, could parts of the station that still function be saved or sold off?

NASA and most scientists expect the station will eventually fail, the US expects commercial stations to take over from ISS beyond 2030

https://www.space.com/iss-commercial-sp … -symposium
The commercial space stations after 2030, NASA says

even if it were to fail in the next years I believe the ISS with its ups and downs is still a wonderful achievement, it allowed Musk to deliver his commerical spaceflight, the USA with NASA and Russia/Soveits had great feats the station added so much more to long duration spaceflight, it gave acess to Brazil, JAXA (Japan) had their experiments, Europe trained astronauts buying flights from the US and Russian rockets, and CSA (Canada) and the new Canadian designs, South Koreans doing spaceflight. Do we know enough to go to build a lab or colony on Mars, Europe and Titan from these long flight experiments. At some time the experiments and tests stop, all good things must come to an end.
I guess with such a complex lab in sapce, so many people, languages culture and private company access it might be one of the Greatest Engineering Achievements

Some still see China as a true rival and real compeditor, especially with politics and the recent Chinese feats. However others might have wanted to block Chinese access to the ISS. For these people I guess it is unfortunate in their eyes they watch China gain a stronger position offering experiments to possible international investors, Chinese gains in space with its new station plans.

Last edited by Mars_B4_Moon (2021-09-06 18:45:02)

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#60 2021-09-06 18:46:41

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 23,851

Re: 202*? and then there might be 2 stations in LEO

There are parts which could be used for the lunar gateway sooner rather than later but will they since when Nasa is done with anything is to let it burn up on the way down.....

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