Well, okay, the linked article has actually nothing to do with humans traveling into space, but rather, the man-made satellites that are being planned to be launched into orbit.
What makes this relevant to the cryptocurrency world?
We know that crypto is a digital currency, and as such, it is entirely dependent on digital networks such as the internet. Despite today's progress, there are still around over 4 billion people that does not have ready access to the internet (according to the article). To address this issue, organizations (SpaceX was given as an example here) are planning to launch satellites that will provide 'satellite internet' which may be accessible to every people on the planet. Hopefully, the cost for internet connections and such will be cheap enough for the poorer people.
And if more people have access to the internet, then that would mean more potential users of cryptocurrencies. Those who previously have no access to the internet can now learn about, and use, crypto which in turn will give a boost to its global use and acceptance.
source: https://www.express.co.uk/news/science/1302826/cryptocurrency-news-space-satellite-internet-spacex-news-bitcoin