@KellyJay
The evidence we see tells us that. It's either assume our logic is correct and Earth is VERY VERY old or you have to have faith in a 6000 year old Earth formed like with the GC in place and the miles deep ocean life deposits put in place just to fool mankind.
I'll go with the evidence rather than trying to invoke a last Thursday creation or a 6000 year old creation myth that was a repaved thousand year older 7 day creation tale from Egypt, who BTW, had a lot of other creation myths also but that is the one Jews ran with, modified for Jewish consumption.
It goes beyond the possibility of belief for me to think a god would go to all that trouble just to fool humans who wouldn't even know they were being fooled till the 19th or 20th century.
Besides Earth and the Solar system, there is interstellar space with literally billions of galaxies and at different stages of their life cycles also, young ones just caught in the act of stars getting together as a galaxy and old galaxies just a bunch of very old stars clumped close together on the cosmic scale.
The ingredients of life are present most everywhere in at least our solar system. Organic stuff has been found on Mars.
The next set of probes to Mars may find life present buried where UV and such from the sun can't get to them.
Then the question would be, getting those samples to Earth to see if that life form was made up of Earthy DNA and such or did it have a completely different plan than the DNA based life we know of here.
Maybe they find the DNA ladder is a triple affair more like the way we make radio towers, amateur radio towers, Cell phone towers and such or cubic structures. No way of knowing till we actually show life is present on Mars which for now is just speculation but maybe in another 30 years or so we may find life there even if it is only surviving bacteria far underground, if humans get there with drilling equipment we will know fairly soon if that is the case.
If so it strongly points to the idea life abounds in the universe.
We may say 100 years from now, find life on some of the moons out there, Titan, Europa, maybe even Pluto.
If that happens the next thought would be life happens anywhere the most basic ingredients are available, certain minerals, carbon, hydrogen and such and life pops up willy nilly anywhere in the universe halfway capable of supporting life.
And of course that is just speculation and you can feel free to poo poo the whole concept since it IS speculation at this point in time. But the possibility is there which would throw some ice on the 6000 year creation tale.
I don't believe Earth is the only place we will find life. I EXPECT there to be life anywhere it is halfway benign for such. For instance, it might be shown there is life on Titan, a smoggy atmosphere moon of Saturn, where a NASA probe landed on the surface and took a lot of pictures and measured the atmospheric pressure, temperature, composition and such already, like 300 odd degrees below zero and snowing methane snow but the place is FULL of organic stuff, most likely pre-biotic but even there life of some sort may have developed.
There is BTW a fascinating probe being built now to launch there in 2026, as it is already known Titan has a gravity field 1/7th Earth and an atmosphere FOUR TIMES thicker, so average pressure of about 60 PSI but pretty much zero free oxygen. That probe is called Dragonfly and it does something no other probe has ever done, assuming it works: FLY. it will be a large drone and if it weighs in at 700 pounds on Earth it will be 100 pounds on Titan and the thick atmosphere will give 4 times the lift pound for pound of the same kind and size drone here on Earth.
It will have a nuclear PS like the Mars rovers putting out a couple hundred watts for decades so it can rest, charge up batteries, send power to blades and fly off to a new location and do that for years, of course assuming it actually lands in one piece.
Exciting time for NASA for sure. Besides all the hooplah about humans going back to the moon and on to Mar and so forth.
Just an aside though.
I would be very surprised to have proven there ISN"T life elsewhere. THAT would up the game for creationism. But I rather think not.