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SheopleNation
Mon1k3r
Why is that dated September 25th, 2019? Is this a story?
I believe the OP made that perfectly clear in the very first sentence. Nothing personal, Just saying. ~$heopleNation
NewAgeMan
Once SKA is fully on-line in about 12-15 years from now, we'll have a sample of millions of planets, right down to the atmospheric composition, then with that kind of sample size, we'll have a much much better idea, but I strongly suspect that we're going to be both disappointed in regards to finding an earth-twin, and elated, in finding a rocky water world, even if it's partly frozen with storms raging over the rest of it.
Best Regards,
NAM
edit on 26-11-2013 by NewAgeMan because: (no reason given)
BlackSnake
a statement by the Westboro Baptist Church that aliens are demons.
JadeStar
NewAgeMan
Once SKA is fully on-line in about 12-15 years from now, we'll have a sample of millions of planets, right down to the atmospheric composition, then with that kind of sample size, we'll have a much much better idea, but I strongly suspect that we're going to be both disappointed in regards to finding an earth-twin, and elated, in finding a rocky water world, even if it's partly frozen with storms raging over the rest of it.
Best Regards,
NAM
edit on 26-11-2013 by NewAgeMan because: (no reason given)
Well we're at least in agreement on looking forward to the SKA
As for the Earth twin, that's coming probably before the SKA is online. The James Webb Space Telescope, the successor to Hubble (due for launch in 2018) might just be able to identify one which TESS (The Transiting Exoplanet Survey Satellite - due for launch in 2017) will have marked for a closer look.
TESS is a lot like Kepler but its mission is different. Where Kepler looked at just a big field of stars 600-2000 light years away for transiting planets, TESS will look at all the closest stars in our neighborhood to see which ones have transiting planets.
If TESS finds a nearby Earth analogue (and it is estimated that it could turn up a few) then the James Webb Space Telescope might be able to get a better look at it and look for signs of life by studying its atmosphere:
Life After Kepler: www.universetoday.com...
So chances are we might have an Earth analog before the SKA is completed.
Also keep in mind that ALMA, the E-ELT and the TMT will have robust capabilities to study exoplanet atmospheres from the ground. All of them are scheduled to be completed before SKA.edit on 26-11-2013 by JadeStar because: (no reason given)
JadeStar
You're referencing the Fermi Paradox/Von Neuman Probe thing. It basically says that any species colonize the entire Galaxy in a few million years based on probabilities, the age of the Galaxy and the so on. The paradox seems to be that we see no signs of this. The other takeaway is that if a hostile species were out there and colonizing worlds chances are we would not be here now as it would have wiped out our precursors before we ever had a chance to evolve.
JadeStar
You're referencing the Fermi Paradox/Von Neuman Probe thing. It basically says that any species colonize the entire Galaxy in a few million years based on probabilities, the age of the Galaxy and the so on. The paradox seems to be that we see no signs of this. The other takeaway is that if a hostile species were out there and colonizing worlds chances are we would not be here now as it would have wiped out our precursors before we ever had a chance to evolve.
In a nutshell:
In depth:
NewAgeMan
reply to post by JadeStar
Also, if technologically advanced ET civilizations have visited earth, and there is rather compelling reason to believe they have, just check out this account of the Japanese Airlines encounter...
then the reason they would do so, or one reason they would come to visit would be the exceedingly rare occurrence of such a world, which leads me to suspect that any such visitors might just as easily be coming from another galaxy as from within our own galaxy, since either way, the distances involved in interstellar space travel are so vast that unless they are travelling through the intervening space over the course of 1000's of years, AT the speed of light, they are using some sort of instantaneous quantum jump directly from their local space, to our own.
reject
reply to post by NewAgeMan
If a moon had life, then its planet almost certainly has life too.
Just look at our moon. Its in the same band as earth is. Its rocky. There's ice, i.e. water. But as far as you know there is no life on it.
And earth is teeming with life.
For a planet to provide shelter for life on a moon, it almost certainly does for itself also.