Sunlight alone doesn't insure life:

In addition to all that's terrestrial, incoming debris brings us the
interstellar staff of life, and/or the raw cosmic building blocks of
off-world life into our extremely fluid realm, as likely transpires
each time we pass through the moon's sodium trail and otherwise get
the 19 month cycle of our passing through the hot breath wash of
Venus. Actual living DNA of complex other life needs a bit more than
a naked fling through space, whereas a thick coating of ice and a
rocky core is what's needed.

The good ship LOLLIPOP of Faith Based Naysayism: unfortunately it
goes along as a swarm like mindset without question and without
remorse against all that might revise their past, present or even
their holy grail future.

This is perhaps why such pretend atheist faith-based naysayism rules
over Usenet and puppeteers government, as though their very life and
most of everything it ever stood for is at risk, as the mere dreaded
thought of anything off-world being the least bit involved with
humanity or even of diatoms is simply not within their holy grail of
what was supposed to have happened. According to the Old Testament,
we're it, as for being the one and only Godly fornicated life in the
entire universe. No wonder there's so much faith-based flak and the
ongoing threat of our getting terminated by way of their WMD.

Terrestrial life and of our local but rather passive sunlight that's
apparently offering exactly the same harmless illumination spectrum as
a xenon arc lamp because, that's the only sort of raw unfiltered
illumination obtained via Kodak film while on our moon, isn't even
entirely necessary if there's such an incoming gauntlet of cosmic
spores, and especially of those having been ice protected spores that
would have easily survived their interstellar migration, reentry and
final lithobraking impact with the surface of this planet. Placing
enough ice around most anything and it'll safely travel between stars,
as its internal cache of spores or even complex forms of life should
manage to survive quite nicely, especially if that interstellar icy
habitat had a 7.35e22 kg rocky core along with some geothermal
reserves.

At 40,000 tonnes worth of incoming debris per year, and of certainly
more so (+.01%/year) arriving as of previous years, whereas perhaps
the odds of some nappy haired virgin Marry getting impregnated by a
holy micrometeorite of some weird off-world spores isn't nearly as far
fetch as we think. This places an entirely new meaning on panspermia
that could have happened, and explains why so many of our early or
even pre teenage girls that spend far too much time outside have been
getting pregnant (don't you think!).
- Brad Guth