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Arguments for fine tuning: Physics has many constants like the charge of the electron, the gravitational constant, Planck’s constant. If any of their values were different, our universe, as we know it, would not be the same, and life would probably not exist.
0:00 — Defining fine tuning.
2:20 — Gravitational constant.
3:59 — Electromagnetic Force.
5:02 — Strong force.
6:13 — Weak force.
7:51 — Philosophical Arguments against fine tuning.
9:36 — Scientific arguments against fine tuning.
11:59 — Sentient puddle.
13:29 — Does fine tuning need an agent.
15:14 — Louse on the tail a lion.
Some say that it could not have occurred by chance, that there must be some agent, like a god that set up the constants to enable life.
Continue reading “Is the Universe Fine Tuned for Life? The Case FOR and AGAINST Fine Tuning” »
Signup for your FREE TRIAL to The GREAT COURSES PLUS here: http://ow.ly/5KMw30qK17T. Until 350 years ago, there was a distinction between what people saw on earth and what they saw in the sky. There did not seem to be any connection.
Then Isaac Newton in 1,687 showed that planets move due to the same forces we experience here on earth. If things could be explained with mathematics, to many people this called into question the need for a God.
Continue reading “Is God in Physics? Fine Tuning Scrutinized” »
No pressure.
We’re just weeks away from the next generation of astronomy.
Continue reading “NASA’s James Webb Telescope Could Detect Alien Life in Just 20 Hours” »
The era of space exploration brings with it a new risk: invasion. The peril comes not from little green men arriving on flying saucers but, rather, from microbiological contamination of Earth from extraterrestrial environments and vice versa. Writing in BioScience, Anthony Ricciardi, of McGill University, and colleagues describe the dangers posed by such organisms and outline an approach to address the threat.
The authors caution that biological contamination endangers both ecosystems and human well-being. “Owing to their massive costs to resource sectors and human health, biological invasions are a global biosecurity issue requiring rigorous transboundary solutions,” say Ricciardi and colleagues. And that threat may be more immediate than previously anticipated. Despite considerable microbial caution among space agencies, say the authors, “bacterial strains exhibiting extreme resistance to ionizing radiation, desiccation, and disinfectants have been isolated in NASA
Established in 1958, the National Aeronautics and Space Administration (NASA) is an independent agency of the United States Federal Government that succeeded the National Advisory Committee for Aeronautics (NACA). It is responsible for the civilian space program, as well as aeronautics and aerospace research. It’s vision is To discover and expand knowledge for the benefit of humanity.
Geological evidence suggests that Mars was temporarily habitable three billion years ago when liquid water existed on the surface of the planet. Because life had little time to develop and flourish, possible microfossils found in the Martian rocks will likely resemble simple organisms. On Earth, life persisted for over three billion years in the form of single-celled bacteria and algae.
In a new open-access study published in the Journal of the Geological Society, the two authors, astrobiologists Sean McMahon and Julie Cosmidis from the Universities of Edinburgh and Oxford, note that the origins of any fossil-like specimens found on Mars are likely to be very ambiguous.
Rocks on Mars may contain numerous types of pseudofossils, structures formed by chemical processes or minerals resembling organic structures, that look similar to the kinds of fossils likely to be found if the planet ever supported life, a press release provided by University of Edinburgh explains.
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We often consider interacting with Aliens and Robots in the future, but what about Alien Robots? Today we’ll ask what artificial intelligence created by aliens might look like and what sort of circumstances we’d encounter them, and if they may be the only aliens we ever encounter.
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I think intelligent tool making life is rare but there is plenty of room for those far, far in advance of us. Robert Bradbury, who thought up M-Brains, said he did not think truly hyper advanced entities would bother communicating with us. Being able to process the entire history of human thought in a few millionths of a second puts them further away from us than we are from nematodes. But then that might not be giving them credit for their intelligence and resources, as they might wish to see how well their simulations have done compared to reality.
Foresight Intelligent Cooperation Group.
Extraterrestrial life refers to life forms that did not originate and are not indigenous to our planet. So this term covers all possible types of life outside the Earth: These can be viruses, but also plant-like life forms. Some go even further: they are looking for creatures that are very similar to humans in their complexity or even surpass them, popularly known as aliens. But if there is extraterrestrial life, why hasn’t anyone heard about it until now? Do so-called aliens even exist? The Fermi Paradox addresses this very question. What approaches there are to this you can find out here!
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Continue reading “That’s Why We Haven’t Met Any Aliens Yet!” »
Recently, the SETI, or Search for Extraterrestrial Intelligence, released an application called SETI AT HOME, which allows any regular computer to help the SETI researchers find alien intelligence. This idea is brilliant since it saves an enormous amount of money by distributing processing power throughout computers all around the globe instead of buying super expensive supercomputers. So, anyone can go to their website and download this application to help the SETI researchers crunch data to find extraterrestrials. This way, the entire internet can be turned into a giant supercomputer! But what if we needed a processing capacity that far exceeded all the computers on Earth used in conjunction? Well, for such vast computational power, we may have to look beyond our planetary resources, directly to the stars! This is where the idea of the Matrioshka Brain proposed by Robert J. Bradbury comes in!
In his 1960 paper “Search for Artificial Stellar Sources of Infra-Red Radiation”, physicist and mathematician Freeman Dyson proposed the idea of a megastructure. Now commonly known as a Dyson Sphere, it was conceived to spot other advanced civilizations in the universe, particularly, Kardashev Type 2 civilizations that are capable of controlling all of the available energy in their stellar system! Dyson believed that a Type 2 civilization should be able to build this hypothetical megastructure around its star which would completely encircle it and harness all its energy.
