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Marcus Maertens

Everything You Wanted to Know about Space Tourism but Were Afraid to Ask | Space Safety... - 3 views

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    "chances are that if 700 passengers are flown annually, up to 10 of them might not survive the flight in the first years of the operations." most remarkable also the question who is to blame if a dead and burned space tourist corps comes crashing down from the sky into your car.
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    How sure is the information that a human body would not completely burn / ablate during atmospheric re-entry? I am not aware of any material ground tests in a plasma wind tunnel confirming that human tissue would survive re-entry from LEO.
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    Since a steak would not even be cooked by dropping it from very high altitudes (http://what-if.xkcd.com/28/) I would doubt that a space tourists body would desintegrate by atmospheric re-entry.
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    Funny link, however, some things are not clear enough: 1. Ablation rate is unknown 2. What are the entry conditions? The link suggests that the steak is just dropped (no initial velocity). 3. What about the ballistic coefficient? 4. How would the entry body orientation? It would be a quite non-steady state configuration I guess with heavy accelerations. 5. How would vacuum exposure impact on the water in the body/steak and what would be the consequence for ablation behaviour? 6. Does surface chemistry play a role (not ablation, but catalysis)? My conclusion: the example with the steak is a funny and not so bad exercise, not more.
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    This calls for some we serious simulations by the Petkow code it seems to me ...
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    I still would need some serious input data...
Juxi Leitner

Slashdot Science Story | Calculating Environmental Damage From Space Tourism Rockets - 3 views

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    Cynthia - please have a look ... can we check the OoM?
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    Yeeesss :) So the "non-commercial" rockets do not emit soot? And how many "non-commercial" launches per year are there in comparison to the commercial ones? Finally commercial space-flight seems more realisable than ever, and "non-commercial" guys will do everything to prevent situation in which they have to compete on an open market... Coming years should be very interesting...
Nina Nadine Ridder

Moon Dreams | North America > United States from AllBusiness.com - 0 views

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    NASA aims to "create a healthy private-sector competition for transport to the space station". Through this the development of space tourism is enforced and an increase in the number of rocket launches should be expected. 
Ma Ru

more space tourism - 3 views

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    Russian space hotel, but alcohol banned on board... something's not right here...
ESA ACT

NASA cuts funding to private spaceship developer - space - 18 October 2007 - New Scient... - 0 views

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    remains an ambitious programme, renewed competition in space tourism as a result?
LeopoldS

BBC News - Mars for the 'average person' - 0 views

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    Rocket entrepreneur Elon Musk believes he can get the cost of a round trip to Mars down to about half a million dollars.
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    and in the headlines again ...
LeopoldS

Paul Allen to build behemoth plane for space launches - latimes.com - 1 views

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    spaceship1 on steroids ...
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    Looks slightly fragile in the middle...
LeopoldS

SpaceX Undercut Competition to Clinch Head turning Iridium Deal | SpaceNews.com - 0 views

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    very nice success by what we called in 2003 "the second space age" ... for Joris: (related to the discussion we had the other day) But the spacecraft will be assembled, integrated and tested in the United States and will include U.S. hardware, meaning they would not be allowed for launch aboard Indian or Chinese rockets under current U.S. regulations.
Ma Ru

Astronauts for hire - 1 views

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    Just a bunch of folks disappointed with not being selected to be real astronauts, or did they smell a real business? See also an interview on newscientist: http://www.newscientist.com/article/mg20727696.200-astronaut-for-hire-space-tourism-will-help-science.html
LeopoldS

BBC NEWS | Science & Environment | Plans for UK satellite launcher - 0 views

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    ".... taking at least 50kg of payload into a polar orbit with a minimum altitude of 400km (248 miles), but engineers would aim to get significant additional performance. "We'd be looking at a range from 50 to up to a maximum of 200kg because you'd want to do different sizes of satellite," said Mr Whitehorn."
Giusi Schiavone

space tourism - 2 views

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    very nice, viewing near space from a baloon
LeopoldS

SpaceX Launch Successfully Delivers Satellite Into Orbit | Wired Science | Wired.com - 0 views

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    fantastic step forward! does anybody know how much they actually sell/sold the launch? I could not find good data. The only phrase in the article that I doubt is this one "Satellite launches are a lucrative business" ...
ESA ACT

The Space Review: Space tourism and carbon dioxide emissions - 0 views

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    Sensible and balanced article
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