Snowflake #3: What once was fuelled by fear / Now has fifteen nations orbiting together here

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"Chris Hadfield and Barenaked Ladies | I.S.S. (Is Somebody Singing)" (Watch on YouTube)

Thank you, Snowflake mods, for not making this a timed challenge! My jan has been pretty busy up until recently, so I'll just keep filling them in. Also, I've spent most of this time trying to pick exactly what songs to talk about for a favorite bit of original canon. Or a few bits, I can't restrict myself!
Filk, at large, is one of the most fun genres out there. I see a good handful of suggestions for what should define filk - subject matter of fantasy or sci fi? folk roots? fandom elements? But it all seems to me to come together under the umbrella of celebration.
Also, it feels to me like we're starting out this year on something of a dire note. this government situation tho, not a fan. I feel like that headline from Hawkeye - Everything Awful (Oh God Someone Do Something). When I wanted to live in interesting times as a kid, I should've thought twice. Ah well.

Anyway, something's got me on a space race kick! The Final Frontier and all; music for fun about the great unknown:

First, another about our own spaceflight:
Surprise! Written by Leslie Fish, sung by Gunnar Madsen