Also this (which I did manage to find, but didn't like): 

Hmmm, somehow I didn't find that one. Can I get a "starliner" tag on it? It doesn't have one.

I'm going to leave this one open; the extremely different format (by when vs on which day) makes it fairly different.

By when will both be back on solid ground?

Resolves when they're on solid ground, for at least 10 seconds, alive.

If the answers are different, each resolves to 50%.

I'll add more answers if that appears warranted.

UTC time, on or before the date in question.

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