God tells Mankind: "There is Water Out There in Outer Space"

I think its interesting that God fixates on water so much from the very Beginning.  Water is also the main thing that scientists fixate upon to find possible locations for biological life beyond Earth's. (That's why they got so excited when they found unmistakeable evidence of water on Mars of late via the robotic surveyors "Spirit" and "Opportunity" and "Endeavor").  Of all the things that students of Nature have forever insisted as absolutely necessary to sustain biological life, it is water. (I believe I'll have a glass right now...)  And governmental planners are coming to agree that the most sought after natural resource in the not too distant future is water.  Why does God fixate on the waters?  And why did God make a point to tell us within the opening words of His Book where the water is?  Why did God tell us there is water on the other side of the sky as well as what we have here on this side?  Was He encouraging our curiosity about life-supporting places beyond the Earth?
Here is some color-coding to try to bring out the relationships between the various objects mentioned here.
Yellow highlighting = lights
Red = position words like above, below, under, inside, etc.
Yellow set into purple = the sky, the heavens, outer space
Navy blue set into aqua = water, habitable places to live
Genesis 1:1-19
1:1 In the beginning God created the heavens and the earth. 2 Now the earth was formless and empty, darkness was over the surface of the deep, and the Spirit of God was hovering over the waters.
3 And God said, "Let there be light," and there was light. 4 God saw that the light was good, and he separated the light from the darkness. 5 God called the light "day," and the darkness he called "night." And there was evening, and there was morning — the first day.
6 And God said, "Let there be an expanse between the waters to separate water from water." 7 So God made the expanse and separated the water under the expanse from the water above it. And it was so. 8 God called the expanse, "sky." And there was evening, and there was morning — the second day.
9 And God said, "Let the water under the sky be gathered to one place, and let dry ground appear." And it was so. 10 God called the dry ground "land," and the gathered waters he called = "seas." And God saw that it was good.
11 Then God said, "Let the land produce vegetation: seed-bearing plants and trees on the land that bear fruit with seed in it, according to their various kinds." And it was so. 12 The land produced vegetation: plants bearing seed according to their kinds and trees bearing fruit with seed in it according to their kinds. And God saw that it was good. 13 And there was evening, and there was morning — the third day.
14 And God said, "Let there be lights IN the expanse of the sky to separate the day from the night, and let them serve as signs to mark seasons and days and years, 15 and let them be lights IN the expanse of the sky to give light on the earth." And it was so. 16 God made two great lights — the greater light to govern the day and the lesser light to govern the night. He also made the stars. 17 God set them IN the expanse of the sky to give light on the earth, 18 to govern the day and the night, and to separate light from darkness. And God saw that it was good. 19 And there was evening, and there was morning — the fourth day.NIV
Proverbs 8:24-31
24 When there were no depths, I was brought forth; when there were no fountains abounding with water.
25 Before the mountains were settled, before the hills was I brought forth:
26 While as yet he had not made the earth, nor the fields, nor the highest part of the dust of the world.
27 When he prepared the heavens, I was there: when he set a compass upon the face of the depth:
28 When he established the clouds above: when he strengthened the fountains of the deep:
29 When he gave to the sea his decree, that the waters should not pass his commandment: when he appointed the foundations of the earth:
30 Then I was by him, as one brought up with him: and I was daily his delight, rejoicing always before him;
31 Rejoicing in the habitable part of his earth; and My delights were with the sons of men.
God fixates on water for the same reason we do: that's where human beings can live, "the habitable part."
So why would God give us all this detail about where the water is?  He lets us know, even long, long ago, that there is both water under the sky, (which is self-evident), and water above the sky, ABOVE THE EXPANSE INTO WHICH ARE SET the notable lights  -thesun, themoon, and the viewable planets ("stars") which help serve as signs to mark the seasons and days and years.
So why does God tell us all this?
[It kind of reminds me of how God also told Adam where he could find some gold & gemstones,
Genesis 2:10-12, "Now a river went out of Eden to water the garden, and from there it parted and became four riverheads. 11 The name of the first is Pishon; it is the one which skirts the whole land of Havilah,where there is gold. 12 And the gold of that land is good. Bdellium and the onyx stone are there." NKJV] 
So again, why does God make a point tell us about the water BELOW "the firmament/expanse/sky;"Sun, Moon, stars set IN "the firmament/expanse/sky;" and water ABOVE "the firmament/expanse/sky" unless there will eventually be a need to know?  Since God saw fit to tell us these things were so at the Beginning, it reasons that He would tell us if this arrangement has ever been changed since.
[Though I am persuaded that we presently dwell below the New (renewed?) Heavens in the New (renewed?) Earth where "there is no more sea" (Rev 21:1), I take this to be visionary-poetry for describing the Church surrounded by the World, employing the vocabulary of the earlier portions of Revelation; NOT a descriptive narrative of the physical make up of our material surroundings such as the Creation account].
I think I can find it within my understanding of things to expect water out there beyond the same Sun, Moon and stars referred to in Genesis 1.  This communicates to me that God has provided for the sustaining of biological life both here on Earth (below the "firmament/expanse/sky”) as well as the sustaining of biological life  beyond the Sun, Moon and stars, (above the "firmament/expanse/sky" into which these lights are set).
And since I hold that Jesus has already Returned, (albeit, in a time and manner not popularly grasped), I must hold that the New Jerusalem, (the Kingdom of the Heavens, Kingdom of God), is also here - lasting forever and ever. This being the case, there remains no end or cataclysm to interfere with Mankind's "going up and taking the land," as seems eventually desirable, even necessary.  (It may be a while, though, there is plenty yet that can be done right here.  And there's plenty of time - untold centuries to come, actually).
*Feel FREE to claim as your own anything I write - while I retain the right to do the same the same with it.*
(All Scriptures cited from the New International Version unless noted otherwise).
And this is love:  that we keep Christ's commandments ~ 2 John 6