> Is that a euphemism for "Humans are leaving rubbish to pollute another part of the universe?"

Yes, in the same sense that the Pyramids and Stonehenge and the Parthenon are rubbish

Well, I guess some alien archeologists will have some fun trying to figure out what it was used for.

IMHO it would be more Yes, in the same sense that mount Everest is covered with all the garbage all the tourists can't be bothered to bring back from their (ego) trip.

On another note, I'm currently reading "Sunburst and Luminary An Apollo Memoir" from Don Eyles, which is a great read that makes you realize the feat it really was at the time.

My main interrogation now (and I've not yet looked anywhere for elements of answer) is why is it so difficult to reproduce with the current tech and scientfic advances ? Is bloatware involved or is the scope really different ?

Well, the universe is fairly big and humankind even if you add it all up is quite small. So....I don't think it will be a great problem for a while.

Oh no, were going to damage the biosphere of the moon!

Leaving spare parts for the lunar colony seems a fine idea.

Way worse.

Even when the moon is finally settled on, I guarantee you that nobody will make any effort to clean it up and throw it away.

It is truely sad that we can be sure that even thousands of years in the future, despite millions of humans looking at it every day, people will rather put a glass box around it, so nobody is bothered by it, than just tossing it into the lunar landfill.

I think it's okay to be sentimental about our first steps into space travel.

Maybe not obviously enough, but that was sarcastic