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Re: starship-design: Fuel costs

>>To get to 1/3rd C thou an Explorer Class only needs 25,000,000 tons or
>>about 16.5 trillion dollars worth.  A meer dozen federal budget years!
>>Then again, we should be able to get a substantial bulk discount.
>> Kelly

> My question is: at what % of the speed of light does 
> aging slow down?
> (I believe this slowing of aging is still theoretical, so
> if it is, answer my question theoretically! :D)
> Ben

Good news.  Its not a theory, it has been tested and shown to work.

Bad news.  You don't really see much effect untill over 90% of light speed or
so.  The exact numbers are at the end of my Explorer overview page.