And by aliens I mean, outer space creatures and UFO. For whatever reason all UFO sighting footage looks either fake or like recorded with a Casio keyboard. And I find hard to believe we don’t have any decent footage of them with all the surveillance and technology we have now.
Edit: 🍿
The only remote chance is panspermia. There is absolutely no chance that complex life exists within 1 astronomical unit of Earth, or within a few parsecs for that matter.
Simple life is likely common, but not complex. The most likely large filter for Earth, appears to be the Theia collision that lead to the moon’s formation, Earth’s hotspots, a likely source of nitrogen and water of the correct isotopes, and the vital plate tectonics that enable elemental cycles beyond anything seen on other terrestrial worlds.
The real question is not what makes Earth unique; it is what makes Venus and Mars so similar, any why Earth is not an average intermediate. The obvious answer is Luna.
1au doesn’t leave the solar system. Barely any stars are within a parsec. Are you intentionally filtering the options?
We have no data for an Earth analog around a G-type star, like absolutely nothing. I highly doubt there is some universal life around such a star, but out of a sample size of 1, who could rule them out? Kepler was barely supposed to be able to survey at this resolution, but totally failed at that objective. They claimed success for politically criminal reasons, but go look at the actual data and you’ll see the random noise they cherry picked to make that claim and how they are massive outliers from the rest of the data. None of those data points are remotely scientifically relevant or taken seriously. No other survey to date has come close to an Earth like resolution.
Researching for my book, there several G-type stars within 7 parsecs. I find them most interesting, but I do not believe complex life is likely anywhere in this galaxy at the present point in time.
Rare Earth, bby. I don’t like it, but it does an excellent job laying out the likelihood that complex life near us is probably nonexistent. Space is mindbogglingly huge, so it’s not impossible for things to evolve elsewhere; just statistically not in our neighborhood
This sounds like a bs answer someone comes up with during a live debate. It’s a bunch of random meaningless pseudo-factors. Earth’s hotspots? A likely source of nitrogen and water of the correct isotopes?? wtf are you talking about?? lmaooo 🤣🤣
So yeah, the reason Jupiter is the largest of the planets within 100 AU of Sol is likely due to the asteroid belt’s Eunomia family, Ganymede being larger than Mercury, and the bow shock of the magnetosphere interacting with the Solar Wind which is beyond anything else seen in the Solar System.
deleted by creator because posted twice by accident
There were some talks on Harvard’s CfA colloquium that went into the evidence for a prior generation of Jovian moons and that these were likely larger. I’ve long speculated that this event is by far the most likely to produce a Theia like object on a potential Earth collision course.
Earth’s hotspots are from a paper this year on the mantle anomalies and ongoing research that correlates them. I watch a range of qualified academic sources with valid and current credentials. This is like my casual entertainment. I don’t care to argue, act like chimps in a zoo throwing party favors, their academic equivalent, or the bottom tier of Dante’s Reddit. You can find most of this through Anton Petrov and Fraser Cain in the last few years. Moat of these ideas are published and the rest are abstraction and speculation that fits the more broad strokes of what I have seen.
I really don’t care who is right or wrong. I enjoy my abstractions in observation from the sidelines. I do not take sides except those that seem more compelling and place no value on tenure or those that appear to build blind careers on poor intuition that makes no sense outside of a narrow frame of reference.
If you take offense at such a casual interest I apologize. Feel free to block me. I do the same to rudeness online as I do in public to my face.
Nah, it’s just that the explanation you gave above didn’t make complete sense to me since there were large gaps that weren’t sufficiently covered to connect the pieces enough for my standards. It wasn’t that your point was wrong to me, just that it wasn’t complete, so it looked made up. Sorry if I came off offensive. I was in a silly mood last night when I commented. I hope you have a nice day 🙂