Well, Martin,

I hope they haven't left any more debris in orbit, that's a lot and enough of what's left of our destroyed satellites.

The time must have been in the distant future: what exists now would have given them a good view of the little planet (still blue) and, I believe, they would not resist going down and enjoying what is here

I'm irremediably optimistic: even before 2050 the Earth will have an atmosphere free of greenhouse gases and garbage-cleaning rockets.

Thanks and congratulations.