Despite the fact that, as noted earlier, “Aliens are real. And astrobiology is exceedingly rigorous,” there are doubters like Ethan Siegel at Forbes:
There may never have been another intelligent, technologically advanced alien species in the entire history of the Universe. Last week, in the New York Times, scientist Adam Frank emphatically wrote that Yes, There Have Been Aliens, concluding that given all the potentially habitable worlds we know must be out there from our astrophysical discoveries, intelligent life must have arisen. What he fails to account for, however, is the magnitude of the unknowns that abiogenesis, evolution, long-term habitability and other factors bring into the equation. Although it’s true that there are an astronomical number of possibilities for intelligent, technologically advanced lifeforms, the huge uncertainties make it a very real possibility that humans are the only spacefaring aliens our Universe has ever known.More.
But Starfleet will always be fun anyway. Hey, boldly go.
See also: Not only is Earth just one nice planet among many, but our entire universe is lost in a crowd
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“somewhere between 80-100% of stars have planets or planetary system orbiting them, approximately 20-25% of those systems have a planet in their star’s “habitable zone,” or the right location for liquid water to form on their surface, and approximately 10-20% of those planets are Earth-like in size and mass.
“So adding that all up, there are more than 10^22 potentially Earth-like planets out there in the Universe, with the right conditions for life on them.”
Um, no. I’ve never seen ANY numbers like this ANYWHERE else (besides the Forbes article). And many of the exoplanets alleged to be in a star’s “habitable zone” are so rated ONLY on a guess at average surface temperatures that could allow liquid water (although of course there remains the question of “liquid at what AIR PRESSURE”…).
In many cases, as with Europa and Jupiter, the exoplanet is so close to the star that the planet is CONTINUOUSLY bathed in sterilizing levels of radiation, which make the abiotic APPEARANCE of Life irrelevant since Life cannot SURVIVE on such planets.
There are at least half a dozen other general disqualifiers, which quickly reduce the “10^22” back down closer to 10^-1.
For as many exoplanets as we have found, not a single one could support complex life. And if you look at this in terms of estimating probability, 1 instance of “YES” (i.e., Earth) followed by 1,000 random instances of “NO” suggests that the actual probability remains “not bloody likely”.
a few notes:
Here is the final summary of Dr. Hugh Ross’s ‘conservative’ estimate for the probability of another life-hosting world in this universe.
Interestingly, when Dr. Hugh Ross factors in the probability for ‘simple’ bacterial life randomly happening in this universe, which is necessary for more advanced life to exist on any planet in the first place, the probability for a planet which can host life explodes into gargantuan proportions:
Then there is the ‘axis of evil’:
At the 13:55 minute mark of this following video, Max Tegmark, an atheist, finally admits, post Planck 2013, that the CMBR anomalies do indeed line up with the earth and solar system
Moreover, general relativity does not exclude a geocentric model of the universe
Verse and Beautiful timelapse video
They are ignoring what the bible says. There can’t be any life out there. The universe is just for a original eternal mankind to occupy. We are way behind and other problems.
Including these commentators in these newspapers for many reasons.
First things first.
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