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#29502 Re: Unmanned probes » Hubble to be fixed - Huzzah! » 2004-08-13 07:29:05

No Green Light for Hubble Rescue 
http://www.wired.com/news/space/0,2697, … _tophead_6

Not really a change but only no cash funds have been put forth yet and a critical design review is 9 to 12 months away.

#29503 Re: Human missions » Hubble mistake - Action needed » 2004-08-13 07:27:16

No Green Light for Hubble Rescue 
http://www.wired.com/news/space/0,2697, … _tophead_6

Not really a change but only no cash funds have been put forth yet and a critical design review is 9 to 12 months away.

#29504 Re: Human missions » Human Base on Venus - An Engineering Challenge » 2004-08-13 07:13:06

No need to land on the ground to create a place to live on venus. Create a balloon system and energy transfer exchanger from the heat of the atmosphere to create electricity to keep it flying non stop. Collect gasses from atmosphere for breathing and for water. Basically a floating atmospheric base. The same could work I think for an airplane like system as well.

#29505 Re: Unmanned probes » Hubble to be fixed - Huzzah! » 2004-08-13 07:02:04

Addition resources on Dexter

Hubble: Robot to the rescue?
NASA moves forward with a plan to service the Hubble Space Telescope without the space shuttle.

http://www.astronomy.com/asy/default.aspx?c=a&id=2377
dextre_250.jpg

#29506 Re: Human missions » Hubble mistake - Action needed » 2004-08-13 06:59:23

Addition resources on Dexter

Hubble: Robot to the rescue?
NASA moves forward with a plan to service the Hubble Space Telescope without the space shuttle.

http://www.astronomy.com/asy/default.aspx?c=a&id=2377
dextre_250.jpg

#29509 Re: Life support systems » Nutrition » 2004-08-13 06:28:52

So we are able to get most of the daily minerals and vitamins needed by growing of plants though I am skeptical about how well some will actually do. But how do we get old besty the cow for the milk products of cheese and such. Or the Liver for the vitamin E let alone vitamin D which I think our body produce when we are out in the sun light naturally.

Have any husbandry experiments with small livestock been done on the ISS?

#29510 Re: Interplanetary transportation » Solar Sails » 2004-08-13 05:54:47

See the other topic for other details on solar sails.

Japan launches Solar Sail
at last someone did it!

#29511 Re: Not So Free Chat » Bad Day for the X Prizers - Two Rockets Totally Destroyed » 2004-08-13 05:49:46

Cash for one is the reason for use of a solid rocket motor. Second is the knowledge of super cold tank construction for Lox/ LH2 probably would have put them way over there heads and budget. Third Engine availability for alternative fuels of Kerosene or say a mono propellant and the high cost as well.
I am sure there were other factors as well.

Solids can be made safer but yes there is always the danger of explosions with them.

#29512 Re: Human missions » Moon vs Mars? - What did President Bush intend? » 2004-08-13 05:37:10

I had remembered seeing an article earlier this year about one of the European launchers having foam problems as well. It was on there Ariane 5 rocket. So the shuttle ET tank is not the only place that has had this happen.

http://www.spacedaily.com/2004/04022712 … spbqj.html

As far as the weight of the mars habitat and such, switching to lighter alloys where ever possible in the construction is definitely the way to go.

#29513 Re: Youth Group / Educational Outreach » NASA Education - Interesting Offer » 2004-08-12 20:25:10

The only problem is that Nasa has to few work sites near colleges or universities. In NH we has a few good colleges and the UNH campus in Durham. Which by the way has done some probes for Nasa in the past but aside from that there is little need for the engineering degrees unfortunately since few jobs would require such knowledge.

The main engineering skills are in construction of buildings, Road bridges, high tech electronic or defense related firms and most recently in the biotech field.

#29514 Re: Science, Technology, and Astronomy » ISS cutbacks » 2004-08-12 13:47:43

All the more reason to make a repair shop module, to store all the shuttle RCC panels and equipment for doing a real repair to either the shuttle or Iss. Throw in a few of the ceramic TPS tiles as well. Not to mention some sheet metal, drills and other needed tools to patch a hole.

#29515 Re: Science, Technology, and Astronomy » ISS cutbacks » 2004-08-12 13:42:38

They have air locks that can be sealed.
What if the section that is stuck is the one that has the space suits?

In addition I would say that they have neither minimal or no means of repair capability for such an occurrence should it ever happen.

#29517 Re: Terraformation » Can Mars stay terraformed? » 2004-08-12 13:03:08

Besides gravity, the electromagnetic belts and an extra thick ozone layer that protects us from the lethal radiation of the sun. We can only think of changing the amount of green house gasses to warm up the planet and to make a breathable atmosphere that would be lost over time due to no or low magnetic field and lesser gravity.

Even if we ever do achieve a breathable atmosphere the lethal radiation would still be a problem? Or did I miss something in the green house gas infussion.

#29518 Re: Science, Technology, and Astronomy » ISS cutbacks » 2004-08-12 12:54:24

I hope we never get a hole in the station. If we can not fix one in the shuttle. How can we hope or expect Nasa to do anything but not be able to do it elsewhere.

#29519 Re: Human missions » Post central for information on CEV - iformation station for the spacecraft » 2004-08-12 12:32:58

Thanks clark for the earlier link posts.
I see from review of it that most of the info is somewhat dated from the 80's with cost projects toward the future.

I noticed that mars Heavy lift capability was at least reviewed but where do we stand today with that rockets developement?

#29520 Re: Unmanned probes » Hubble to be fixed - Huzzah! » 2004-08-12 11:46:33

As noted by the most recent Hubble component failure Hubble Program is Reshuffling Observation Requests Following Failure of primary spectrograph. This is to be expected but if the time line for the planned rescue is not moved up to compensate for failures soon. There may be nothing left to save.

http://www.aviationnow.com/avnow....124.xml

#29521 Re: Planetary transportation » Simple Mars Vehicle Part 1 » 2004-08-12 11:00:52

On smelting operations here is a solar furnace.

High Temperature Solar Ovens
http://www.permanent.com/i-ovens.htm

Lunar Materials Utilization
http://www.permanent.com/l-index.htm

#29522 Re: Life support systems » Nutrition » 2004-08-12 10:39:53

So far I believe the only vegitable growth experiment has been done with a variety of snow peas on the ISS. Does anyone know of any others that have been tried?

#29523 Re: Planetary transportation » Simple Mars Vehicle Part 1 » 2004-08-12 10:30:19

Food for thought Alternative power sources being developed.

A New Charge Powering Up New Uses for Supercapacitors.

http://abcnews.go.com/section....-1.html

Snipet:
Like batteries, these devices could hold enough energy to power portable devices, computers, or even cars. And they could be recharged within seconds, not hours like traditional rechargeable batteries.
The heart of Honeywell's solution is a fluorborate salt, a chemical whose physical structure allows it to store a tremendous number of electrons.

#29524 Re: Space Policy » Space fairing Nations - The ever changing view » 2004-08-12 10:24:02

Recently we have heard of plans by many nations after the announcement of the Presidential vision. From this Nation and others of already in the works probes, explorers and of manned flight as well not only into orbit for the first time but more aggressive plans to land man again on the Moon. There have also been the statement to go beyond an to explore Mars someday.

It was not to long ago that many would have thought that a manned flight from China was impossible. Or that developing nations of india would even have a space program.

Gone are the days when the big two some of the Russian space agency and Nasa being the only games in town.

Space is not easy and not only is it filled with risk but it directly influenced by politics and of policies when it comes to funding.

Bowing to the later is India which is to Rethink Plans to Send Man to Moon. Indian Space Research Organization Reconsiders Its Plan to Send Man to Moon by 2015.
http://abcnews.go.com/wire/World/ap20040812_927.html

On the note of China Calls For Cooperation With US, Japan In Space Program. This is a very good thing in that it will defuse the military tension of a new space race.

Snipet:
"A top Chinese space official said China is willing to cooperate with the United States and Japan in space programs on exploration and finding resources.
During a briefing on China's geospace exploration program in cooperation with Europe, Sun Laiyan, director of the China National Space Administration, said China hopes to cooperate with nations who have space exploration programs."

http://www.spacedaily.com/news/china-04zx.html

As you all are aware of it is time to change How Nasa does space and at what cost. We are all involved in such conversations daily here on these forums and on many others. Talking to space friends near and far on how to achieve the goal of not only going to the Moon but as well to Mars.

Lets all keep it up, we are being heard.

#29525 Re: Human missions » Post central for information on CEV - iformation station for the spacecraft » 2004-08-12 09:57:55

I would say from the resources at Boeing that they are possibly ahead of the game but still way to slow for my likings.

Baa proposal
http://www.boeing.com/defense....nal.pdf

CES - CEV Launch Vehicle
http://boeingmedia.com/images/one.cfm?i … &release=t

Building Blocks of Tomorrow
http://www.boeing.com/defense-space/spa … locks.html

Achieving the National Exploration Vision
Propulsion Perspective
http://www.boeing.com/defense....ood.pdf

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