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More space news!


tkdguy

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Re: More space news!

 

Space flight 'may damage eyesight'

 

Brain and eye problems have surfaced in astronauts who spent more than a month in space, marking a potential setback to plans for longer deep space missions, a US study has found.

 

Just means that we need long-duration missions to have some sort of artifically induced 'gravity'.

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Re: More space news!

 

Anyone know why they gave up on the whole spinning satellite concept?

Well, sattelites don't need gravity.

And the space station where built because of the micro-gravity environment.

 

Actually spinning would mena you have to built it more robust - the forces also apply to all joints of your station, with more force the further away from the rotation axis you go.

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Re: More space news!

 

http://news.yahoo.com/nuclear-fusion-real-possibility-models-suggest-200610438.html

 

Not exactly space news, but conceivably has a direct bearing on the future of space travel.

 

WoooHoooo. Magnetic containment, like I expected. Wonder if they're using Dr. Bussard's new arrangement for the containment bottle?

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Re: More space news!

 

It also means that a navigation error could wipe out ... just about anything. Alternately, interstellar wars of extinction become trivial to do, and nearly impossible to defend against. Maybe N = 1 for a reason.

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Re: More space news!

 

Let's put it this way: if species with star drives are anything like the kind of folks who wish the movie Smokey and the Bandit was about them, it's astonishing there's any Galaxy left at this point in time.

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Re: More space news!

 

Let's put it this way: if species with star drives are anything like the kind of folks who wish the movie Smokey and the Bandit was about them' date=' it's astonishing there's any Galaxy left at this point in time.[/quote']

You are aware that the light the closest galaxy (andromeda) needs around 2.6 Million Years to get here? So ours could be the last galaxy around. If there even is a galaxy left - we only catalog stars for under 1.000 Years, so only everything in 1k Light Years is certain to still be there.

 

The light from the Sun needs 7 Minutes to earth. If the sun would go supernova now, we would only know it a second before the shock wave hit us....

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Re: More space news!

 

You are aware that the light the closest galaxy (andromeda) needs around 2.6 Million Years to get here?

 

The light from the Sun needs 7 Minutes to earth. If the sun would go supernova now, we would only know it a second before the shock wave hit us....

 

Are you aware that you are responding to an astronomy professor?

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