I am also just wandering will astronauts need bitcoin or other money in their travelling through the Universe?
 

Well i think so astronauts do have access to the internet in space. I think the further out they go in space the more time it will take to do the transactions. Because of the time it takes the signals to travel. So sending a transaction from mars will take about 4 minutes to process.

The further you go, the harder it would be.

Information, like anything else, will only be able to travel at the speed of light.  So in the best case scenario you're talking about astronauts being able to send Bitcoin from one country to another over several minutes.  To Mars would be about 12 minutes ideally.  I don't know what problems it could cause the network if you were much further than that though (solar systems away, for example).

What the heq??haha. I had good with these one mate.
Well whats the use of it?. Im sure if they have and free time and internet they would use it for some maintenance related and not really interacting in the outside world live. and also the sattelites dont really cover light years distances to connect on web. They can use transmitters but only for the videos so that it can be seen in the NASA headquarters. Why would u even make transaction in space of they can't really withdraw it without ATM's.

I remember a little while ago that someone said that a group of people were going to put a Bitcoin satellite into space, whether or not they  actually did it is known only to them though what I do know is that Bitcoin could be used anywhere that a Internet type system is located.

Since information gets bounced off from satellite's the possibility of Bitcoin surviving and being transacted in space if very likely to work for most people that decide to go up there.

as far as I know they have an internet even in space as they are probably using it for communicating with NASA from space so they can be able to access it but well, I am also curious if there's someone in space that an astronaut can send a bitcoin or where they can be able to use it and should they need to use bitcoin while in space ? I don't even think that they'll use it in order to send a bitcoin to their family

If they have Wi-Fi internet connection-maybe.
This question has been asked a hundred times before.
Don`t just boost your post count.
I should start a thread "Will aliens use bitcoin?"

Well the question is a bit ridiculous but virtually bitcoin can be used anywhere where there is internet. If the internet can be made available in space, then surely there will be no hindrance from using it there. But since mankind has no access to space yet, there is no need of the bitcoins there but maybe after 10 years if mankind establish its existence on space, then surely bitcoin usage will be a no issue.

Yes, but the main chain would still have to run without significant delays, at least with the current design and algorithms.

You can generate a transaction offline then propagate it to the network several minutes, hours or even days after you generated it, an astronaut propagating their transactions with the speed of light delay wouldn't be so much different.

But I can't see how a decentralized solar system wide blockchain would work

If you can transfer data between two points in space, be that through light or something else, then yes, you are able to use Bitcoin in space. It's not that hard of a concept to figure out. All you need to be able to do is transfer data (a transaction) and have it be synced to the blockchain and you're good.