BradGuth wrote:
They probably know that sustainable life for the human species is
becoming limited here on Earth, whereas it's just a matter of time
before there's simply no good options for continually sticking it out
(often fighting tooth and nail) here on Earth, especially when there
are better off-world options. Even the planet Venus has impressive
considerations that are being intentionally banished from public
review, not to mention the interior of our moon(Selene) might not be
too depressing.


You've just stated the obvious purpose of exploring space, to find
somewhere to live. It won't be Venus, there might be a few settlements
on the Moon, simply for its proximity though.

Yousuf Khan