To us everything seems normal. Our planet, blue and bursting with life, sits in the middle of the “habitable zone” around the Sun, with burning hot Venus inwards and lifeless Mars beyond. Giant gas planets exist way farther out. That’s as how it should be, right?
An updated look at how we are preparing to search the solar system in SETI to see whether anyone has ever stationed an alien probe in the star system including just what we might look for.
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Group of academics say they have identified fossilised sponges, corals, worm eggs, algae and more on planet’s surface.
Is it a millipede? Is it a rock?
That is the question that is troubling some scientists who believe that life may already have been found on Mars, if you just look carefully enough.
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“We Can Remember It for You Wholesale” is a short story by Philip K. Dick first published in The Magazine of Fantasy & Science Fiction in April 1966. It features a melding of reality, false memory, and real memory. The story has been the subject of two film adaptations, 1990’s Total Recall, with Arnold Schwarzenegger as the story’s protagonist; and 2012’s same-titled with Colin Farrell in a similar role.
Douglas Quail, a simple and ordinary clerk, wishes to visit Mars. Unable to afford it, he visits a company, REKAL (pronounced “recall”) Incorporated, which promises to implant an “extra-factual memory” of a trip to Mars as a secret agent. The procedure involves administration of narkidrine, a sedative and truth drug, which causes Quail to remember and reveal that he actually did go to Mars as a secret government agent. His conscious memories of the trip have been erased, but his initial desire to sign up for the trip cannot be removed. The REKAL staff quickly get Quail out of their office without implanting anything, but his real memories are now returning slowly. At home, he finds physical evidence to support his trip but also remembers that he attended REKAL. This conflict causes him to angrily return for a refund, which he is given.
When two police officers show up to kill him, Quail discovers that his former handlers have been reading his thoughts by means of an implanted device that was used to communicate with him during his mission on Mars. As more memories return, he realizes that he was an assassin for the government, but also remembers how to disarm the cops and escape. Since he can be tracked by the device, this cannot last for long. He thus makes a deal for the memory of his Mars mission to be replaced by a false memory of his deepest fantasy as analyzed by psychiatrists, in order to prevent any further desires to visit REKAL. He is sent back to REKAL for the procedure, but under the narkidrine, he reveals that the memories they are about to implant are real — that aliens visited him when he was nine and were so touched by his kindness and compassion that they decided to postpone their invasion until his death. By simply remaining alive, he is the most important person on Earth, and the government is now unable to kill him.
In this episode of the Physics World Weekly podcast we meet three scientists who are trying to answer a question that humanity has long pondered: does intelligent life exist elsewhere in the universe?
Peter Ma and Leandro Rizk of the University of Toronto and Cherry Ng of the French National Centre for Scientific Research in Orleans are part of a team that has used machine learning to identify eight potential “technosignatures” in data from the Robert C Byrd Green Bank Telescope. The trio explain how they look for signs of intelligent life in radio-telescope data and how machine learning gives a helping hand.
Ng also talks about her research on how signals from pulsars could be used to detect gravitational waves.
The renowned physicist and science communicator, Brian Cox delves into the topic of alien life and in particular, the question about intelligent alien civilization.
With his trademark enthusiasm and engaging style, Brian Cox explores the possibility of extraterrestrial life and why we haven’t found any.
The video starts with a brief overview of what Brian Cox & astronomers call: “The Great Silence”. Cox then goes on to explain the Fermi Paradox and the Dark Forest Hypothesis, which suggest that intelligent life may be intentionally avoiding contact with other civilizations to avoid being destroyed.
Cox uses his expertise in physics and astronomy to explain how alien life may be closer than we think. Like on the surface of the red planet, Mars. He discusses the potential for life to exist in other planets because there are at least 20 billion other earth like planets in our galaxy alone.
Throughout the video, Cox provides easy-to-understand explanations, making complex scientific concepts accessible to a broad audience.
Located in Austrailia, the CSIRO Parkes Radio Telescope picked up the strange signal stemming from Proxima Centauri.
CSIRO/A. Cherney.
On 29 April 2019, the Parkes Radio Telescope in New South Wales, Australia, picked up an unusual signal while searching for signs of intelligent life elsewhere in the universe. The telescope was observing Proxima Centauri, the nearest star to the sun and host to a number of exoplanets that are potentially habitable.
Posted in alien life, futurism
As scientist extraordinaire and author of an empire of science-fiction books, Arthur C. Clarke is one of the farthest-seeing visionaries of our time. His pithy quotations tug harder than those of most futurists on our collective psyches for their insights into humanity and our unique place in the cosmos. And none do so more than his famous Third Law: “Any sufficiently advanced technology is indistinguishable from magic.”
This observation stimulated me to think about the impact the discovery of an extraterrestrial intelligence (ETI) would have on science and religion. To that end, I would like to immodestly propose Shermer’s Last Law (I don’t believe in naming laws after oneself, so as the good book says, the last shall be first and the first shall be last): “Any sufficiently advanced ETI is indistinguishable from God.”
God is typically described by Western religions as omniscient and omnipotent. Because we are far from possessing these traits, how can we possibly distinguish a God who has them absolutely from an ETI who merely has them copiously relative to us? We can’t. But if God were only relatively more knowing and powerful than we are, then by definition the deity would be an ETI!
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Hello and welcome! My name is Anton and in this video, we will talk about new explanations of the Fermi paradox focusing on the Hart Tipler Conjecture that tries to disprove the existence of extraterrestrial intelligence.
Links:
https://ui.adsabs.harvard.edu/abs/1975QJRAS…16…128H/abstract.
https://arxiv.org/abs/2301.09575
Potential other resolutions of Fermi paradox:
https://www.youtube.com/watch?v=b3xro2jHevk.
https://www.youtube.com/watch?v=k_B9YP5nEWw.
https://www.youtube.com/watch?v=b3xro2jHevk.
Hawking radiation: https://youtu.be/6h6MgvBLrxk.
Penrose process: https://youtu.be/A-WIsnoX2Uw.
0:00 Intro.
0:40 Hart-Tipler Conjecture in a nutshell.
3:40 Main criticism of this idea.
7:10 Potential conclusions.
9:00 Potential solutions from Quantum Computing.
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Will a machine learning AI be the way we find out we are not alone in the Universe?
In a January 2023 published paper in Nature Astronomy, a collaboration by authors from universities in Toronto, Canada, Berkeley in California, Manchester in the United Kingdom, Malta, Queensland and Western Australia, and the SETI Institute, created a machine learning algorithm variational autoencoder, a type of neural network that learns through the unsupervised study of unlabelled data. They used it to try and find technosignatures contained within 150 Terabytes of radio traffic from 820 nearby stars. The data source came from the Green Bank Telescope in West Virginia, the world’s largest steerable radio telescope. This data had previously been searched in 2017 using traditional techniques.
Radio signals are abundant throughout the Universe and they represent the most effective way for us to find out if we are a solo act or one of many technical civilizations. Our contribution to radio traffic has been going on for more than a century which means an alien civilization within a hundred light-years from us with technology similar to ours can now detect us.
SETI (Search for Extraterrestrial Intelligence) has been using radio telescopes and receiving antennae since 1960 in a search to detect signals coming from space in patterns similar to what we produce. So far, however, it has proven to be harder than finding the proverbial needle in a haystack. That’s why the application of AI to the vast amounts of radio traffic coming from space is seen as a step up in our efforts to detect alien intelligence. It seems ironic that an AI may be the way we first discover alien intelligence originating from distant solar systems. And it may be that those alien species are using their own AIs to be doing the same.
