Just curious, since the Internet is mostly an Earthly thing... would astronauts be able to access and transfer their Bitcoins whilst traveling throughout the solar system?
Bitcoin works on a digital technology platform, it depends entirely on internet data. So, no matter where they are in the space, just as they can connect to the internet, they can use bitcoin easily. In fact, traveling the entire solar system at the present moment is impossible, our technology can not meet.
Yes, and as long they have internet connections and communications signals to earth then it is very possible. BTW, Internet is also present in space, I remember astronauts sent tweets from space before.