See the expanded and updated version of this show on...
The search for Earth-like planets is reaching a fever-pitch. Does the evidence so far help shed light on the ancient question: Is the galaxy filled with life, or is Earth just a beautiful, lonely aberration? If things dont work out on this planet Or if our itch to explore becomes unbearable at some point in the future Astronomers have recently found out what kind of galactic real estate might be available to us. Well have to develop advanced transport to land there, 20 light years away. The question right now: is it worth the trip?
If things don't work out on this planet...
Or if our itch to explore becomes unbearable at some point in the future...
Astronomers have recently found out what kind of galactic real estate might be available to us.
We'll have to develop advanced transport to land there, 20 light years away.... But that's for later.
The question right now: is it worth the trip? The destination is a star that you can't see with your naked eye, in the southern constellation Libra, called Gliese 581.
Identified over 40 years ago by the German astronomer Wilhelm Gliese, it's a red dwarf with 31% of the Sun's mass... and only 1.3% of its luminosity.
Until recently, the so-called M Stars like Gliese 581 flew below the radar of planet hunters.
They give off so little energy that a planet would have to orbit dangerously close just to get enough heat.
Now, these unlikely realms are beginning to show some promise... as their dim light yields to precision technologies...
...as well as supercomputers... honed in the battle to understand global changes on this planet... Earth.
Will we now begin to detect signs of alien life?
Or will these worlds, and the galaxy itself, turn out to be lifeless... and Earth, just a beautiful, lonely aberration?
To some, like astronomer and author Carl Sagan, the sheer number and diversity of stars makes it, as he said, "far more likely that the universe is brimming over with life."
This so-called "many worlds" view can be traced back to ancient observers... in China, India, Greece and Egypt. The Qur'an, the Talmud, and many Hindu texts all imagined a universe full of living beings.
In the 16th Century, this view got a boost from astronomer and mathematician Nikolas Copernicus... who came to believe that Earth is not the center of the universe, but revolves around the Sun.
Seven decades after Copernicus, Galileo Galilei used his newly developed telescope to show that our Sun was just one among countless other stars in the universe.
By the modern era, the "many worlds" view held sway in scientific circles. A variety of thinkers considered what and who inhabited worlds beyond our own.
From Martians desperate to get off their planet... to alien invaders intent on launching pre-emptive strikes against ours... or simple life forms on an evolutionary track to complexity.
But other thinkers have been struck by a different view.
The Greek philosophers Aristotle and Ptolemy believed that humans and Earth are unique.
With the spread of Christianity, this Ptolemaic system became widely accepted.
The latest variation on this theme is what's called the "Rare Earth" hypothesis. It holds that Earth and sophisticated life were the result of fortuitous circumstances that may not be easy to find again in our galaxy.
Does the current search for planets shed light on this debate... sending it in one direction or the other?
So far, our only good reference for recognizing an Earth-like planet is... Earth.
It does have some fortuitous characteristics... it's dense, it's rocky -- with a complex make-up of minerals and organic compounds -- and it has lots and lots of water.
It's also got a nearly circular orbit around the Sun, at a distance that allows liquid water to flow... not too close and not too far away, in the so-called "Habitable Zone."
That's defined as the range of distance from a parent star that a planet would need to maintain surface temperatures between the freezing and boiling points of water.
Of course, that depends on the size of the planet, the make-up of its atmosphere, and a host of other factors.
And whether the parent star is large; medium like the Sun; or small.
Some scientists also believe we live in a "Galactic Habitable Zone." We're close enough to the galactic center to be infused with heavy elements generated by countless stellar explosions over the eons...
But far enough away from deadly gamma radiation that roars out of the center.
If there is a galactic habitable zone... it's thought to lie 26,000 light years from the center... about where we are... give or take about 6,000 light years.
I just want to share what I think of life on other planets. What if the conditions to have a life on other planets shouldn't be necessarily the same as the conditions of life to live on Earth? What if life on other planets doesn't need water or oxygen to live? Instead, they adapted to something else in order to live.
I know NASA is looking for life on other planets that has water on its surface because there are MORE CHANCES to have a life on a planet that has a water on its surface.
Unfortnately the only template we have is the Earth end the Solar System but we don't know the true values of the limitations on life. We assume and base our searches on Terrestrial life forms. We are like blind men trying to make sense of something we cannot sense.
Or maybe, life in another universe is highly possible.We, in a bubble of an universe with trillions of galaxies will never b able 2 find Xtraterrestrials within our universe and our galaxy.Technology has NO MATCH and will never be able to quest this Super Xtraordinary Creation .We r the aliens among ourselves.Terrorism,viruses etc The more advancement in Techlgy, the farther we get away from other galaxies.we will have 2 travel atleast 2times the speed of light to search.Hubble(first declared seeing billions of galaxies & now it see's trillions of galaxies ...what next Mr Hubble..quadrillion!) and the latest forthcoming Toys will have limits to see not even quarter of the length of the universe. we r being stretched by space 74 km/sec rather than stars just moving away.
Humans are a parasite, we consume, we destroy our environment, we killing off many life forms into extinction, we turning this planet into a dessert, worst of all we battle each other for land and resources so why would anyone think we should find another planet only to occupy or destroy it too? Hopefully humans will go EXTINCT. 🦂
I'm starting to think the Rare Earth Hypothesis is not just a idea, but a fact. Life is insanely complex and has sooo many prerequisites for it to happen....
Red dwarf systems are incapable of sustaining life as we know it, which greatly annoys scientists, since it makes their work 'astronomically' cut out for them.....
+JB Townsend The universe is hostile to life. If there are trillions of systems, the probability decreases, not increases, because the requirements for life haven't changed, but now, you have trillions of possible different system configurations than ours. Remember, you need our current setup because it favors life. We need the right type of galaxy, the right distance from the center of the galaxy, the right type of star, the right distance away from other stars that'll perturb and screw up its system, the right number of planets in a stable orbit, large outer gas giants that prevent debris obliterating the terrestrial worlds, terrestrial worlds in the Goldilocks zone, the right sized planet, the right type of planet with an iron core that generates a magnetic field, the right type of atmosphere, volcanic, liquid water present on the surface, a moon that causes tidal forces that prevent the crust thickening and interfering with the mantle and magma, and so on. Trillions of systems mean any one of these factors can vary wildly, and you get a totally different and unique system, beautiful, but it can't support life, let alone complex life.
+abloogywoogywoo Not sure if I'm fully on board with the exact logic of the dice rolling analogy if I examine it further-- although I understand that it was meant to be illustrative of the probability of life, and I understand your point.
If a planet represents a "roll" of the dice, or a "chance" of life and the dice represent the variables involved for life (the fermi paradox/drake equation) 6 being ideal, and there are trillions of stars in the universe, and a number somewhere in that magnitude of planets exist- therefore that many rolls, then the odds are still vast- but the rolling is also vast- you know what i mean? Whether or not we are capable of examining each and every one (rolling the dice a trillion times) wouldn't necessarily determine whether or not life exists elsewhere or not. Intelligent life should exist regardless, given the numbers are high enough, or are in fact infinite.
+JB Townsend That's not the way probability works. Increasing the die and yet expecting that much needed "all-6" result, the odds of life has significantly decreased. Still possible, but now billions of times unlikely. Its like wining the lottery - yeah you can do it, even if the numbers required for a jackpot increase, but don't ever have high hopes of accomplishing such a feat within a single lifetime. Complex life, merely increases the playable die even further. Complex life that can survive long enough to build civilizations, just add a few more billion die, and so on and so on.
Although, if you get billions (perhaps infinite) rolls of the dice, for every planet/moon that exists in a habitable zone or has potential for life, it becomes a higher probability. The variable that is the most daunting in my opinion is Time, and the degree to which intelligent life is living in their exploratory time. There could be intelligent species searching for life in another galaxy, which would be vast on it's own and too far away. There could be life that has seen our solar system, but is so far away there's no way to reach us. Just as we couldn't reach most galaxies.
+Michael Atwell It would have a lot of requirements. Look at our solar system's configuration, and our location in the galaxy. The prerequisites for life is just insane. Its like grabbing a boxful of dice, and they all roll, and all land on "6", yes its possible, but the odds are extreme. Most of time you'll get millions and millions of other undesirable outcomes.
If we do find other planets, people are going to repeat our destructive cycle and drive other alien life, and never learn from this. This will then result in a potential war over the galaxy, (if intelligent life is out there) mabye in 500 000 years our futre grandchildren will shake spartan 117's hand (MasterChief) then, SPARTAN LOCKE IS GOING TO CHARGE OUT OF NOWHERE AND START SWINGING HIS SWORD AT MASTER CHIEF, AND THEN CORTANA IS GOING TO MASH UP EVERYTHING, THEN MASTERCHIEF FIGURES OUT THAT HE IS A HOLOGRAM AND THEN SPARTAN LOCKE RUNS HIM OVER WITH A WARTHOG. The point is that we should not go and destroy other planets for our own personal gain, like really, but at the same time we are running out of earth materials. So we should get out there and drive live to extinction :) and weild energy swords. If humans do find other planets, we are officialy the most desructive living things in the universe. :p
if we do find a planet? we've found them and just can't get to them. we'll NEVER be able to. we'll destroy this planet first. And I say we because not one mother fucker who ever lived from the industrial revolution on has polluted the earth any less than the next man. so quit looking down at people, passing judgement, and face your own actions. anytime you use electricity, drive a car, or anything of that nature, YOU ARE FUCKING UP THE OZONE LAYER.
If we ever find another earth-like planet, then maybe we should send all those whining Christians there. Yeah! Lets make them a home on that planet for those religious nutjobs, where they can practice their stupid fairy tales. That way we don't have to worry seeing those fucking Christians back on earth! Mwahahahaha! #fuckreligion
how about you go live in one of the middle eastern countries and see how well you do over there? you're lucky to live in a country where christians are the majority. other religions don't even tolerate people who don't belong to their own religion. you'd be dead.
I have known plenty of atheists who are very nice, loving people - much less brutal and warmongering than many Christians I have known. I have also met atheists so tightly bound to their own dogma that they end up practicing the scientific method in reverse (kinda like religion), and so arrogant that they outright ignore undisputable evidence when it runs contrary to their beliefs. Some atheists can be as rabidly bloodthirsty in the defense of their own beliefs and dogma as the most fanatical of L. Ron Hubbard's disciples.
It's just how people roll...
We are the aliens we search for.
There is no point in trying to send our mushy pathetic bodies through such an ordeal as space travel of such duration. Why? Because anywhere that would be possibly habitable, we would already be, living in some form, maybe a different size and shape but just in the same way we managed to get to and evolve on this rock we would already have done so elsewhere. Unless of course if you believe that someone or something waved a wand and we magically appeared from nothing, we came here as micro organisms on meteorites. Like seeds from other worlds just like ours that were smashed to bits in some collision or a star blowing up and sending many pieces of matter in every direction, our origins are part of an endless cycling of matter through time and space. Now aint that a blast?
The problem is not to find life on other planets, i am sure that there are many planets with life as we know it, with large animals and multitude of species, the real problem that i am really afraid, is how many of them are "inteligent as we could expect" pretty much like us. Because no one has answered that question, how have we become inteligent ? We don't know and we would perhaps never know, so how could we predict inteligence life on other planet if we don't even know how we became ourselves inteligent. To me discovering new worlds with animals would be great, but other inteligent species would just be awesome.
Some other animals uses their brain to get their food or their protection against predators. it does not make them inteligent, then it does not explain how we became inteligent, and them are still being stupid.
If we knew the exact process, it would help, and of course it is evolution, what else could it be ?
There are many theories as to why the human race is the way it is. Mutations and evolution, early ape needed to adapt to survive and critical thinking was achieved with the use of basic tools. Tools like measuring the depth of water and to grab ants from deep within the trees with use of a stick. This type of thinking eventually led to humankind.
Rest assure God took care of everything, he made sure that we never reach another planet. He gave us only one planet to destroy.
If things don't workout on this planet/if we destroy the planet or when we destroy this planet. How miserable and perverse is that and with how much pride he is telling us, like we are so smart and capable to reach for other planets. The truth of the matter is that we are the devil who will destroy anything and everything. Imagine now if we were just another animal on the earth there would've not been any atom bombs there would've not been any pollution, the earth would've been in absolute equilibrium.
+Rozen Maiden ok, if you think religious people are dumb so you think all famous scientists that has invented many technology and science theories but upholding their religion too are dumb ?
And try to explain to me the beginning of the big bang theory
Taste this bastard
Here are 10 planets inhabited by intelligent humans: Timar (DAL Universe), Erra (Plejares System), Deron (Vega System), Sater (Lyra System), Deneb (Cygnus System), Druan (Nol System), Njsan (Lyra System), Askal (Plejares System), Luseta (Plejares System), Bardan (Coma Galaxy)
This can be confirmed through the 80,000 plus pages of Billy Meier evidence. Everyone else is either lying or stupid. Why don't you focus on these areas instead of guessing?
We will get to other planets, but once we can locate them we then must be able to survive to and on these new worlds. Most likely the new world will be a different size, distance from the sun, have no moon or multiple moons, strange orbit.. all of these new phenomena will affect us physically and mentally. I can only think of two possible solutions, 1. create protective suits and take certain drugs that will keep us alive and strong to deal with space travel and the new planets or genetically mutate the human body to deal with specific situations or all of them. I would think the second method would be the most rational.
Our Rockets in our Star with a Team Family Members My Mom and Dad was a Most of Strong for our this Time And All Team Family Members are have a Star of Colors of the Planet of Earth in Around the World
*We'd make great pets!*
There can also be non earth like planets that have intelligent life that is vastly different from us. Like a planet with oceans of arsenic and an atmosphere of sulphur dioxide that produced intelligent life that's perfectly adapted to that environment. Why do we discount this notion? We may not be able to survive there and they may not be able to survive here but if we limit our search and only investigate earth like planets we can possibly miss the most intelligent of life that's out there.
This is why I think the more intense search now for earth like planets is more *POLITICAL* and has more to do with colonization and resource gathering than it does with finding other intelligent life. In other words, more about greed, power and control expanding beyond just the earth, since those in control here are nearing being finished with "raping" this planet and it still isn't enough for them.
Think about it for a moment. This may be why we now have the UN writing "just in case" policies for scenarios should we bump into extraterrestrial intelligent life that may not be so thrilled about our intentions.
And if I'm correct on this you can bet it would be the same old repeated UN bullshit "policy" of power and greed, forcible control, wars and killing as they currently carry out now all over this earth, and they probably have the hubris to think they could expand their wicked, greedy ways out into the galaxy.
So while I think the idea of finding earth like planets is fantastic, it may be that the true intentions behind it are likely the wrong intentions.
We as a species need to evolve from what is still such a primitive mindset of materialism, selfishness, competition and the whole idea of greed, personal wealth, power through violence, etc., before we should even begin to think about exploring the galaxy and meeting other intelligent life who may likely not think like us at all.
If we are still so primitive that we can't even get along with each other and still have wars all around our own little planet for nonsense reasons and imaginary borders, and people who starve to death for no real reason outside of greed and selfishness and a lack of compassion, are we really even yet prepared mentally, emotionally or spiritually to link up with another intelligent species from another planet who might see us as we see monkeys fighting with sticks over who gets the biggest banana or which monkey gets to claim the area of the jungle with the tastier fruit?
These ET's would probably be perplexed as to why humans as a whole species have so very much knowledge and power, yet so little understanding of how to use it and share it properly. *We might only make great pets for them!* Just my thoughts.
galaxies that takes us hundreds of thousands of light years to cross it, with hundred of thousands of planets in each galaxy and billions of galaxy's in the universe...there has to be life out there it would be so cool if they finally found one and somehow we would be able to communicate
I believe there is life outside of Earth. We go by what we were taught as a child and growing up in schools. I believe scientist are doing test now to send people to other plants to test life forms. With the technology we have today someone please tell me what happen to Malaysian Airlines Flight 370? Scientist say the Earth is over 100 million yrs old. The year is 2014 how do we know what happned over 100 million yrs ago? I believe scientist know something about another life form beyond earth. I also believe they are keeping some things a secret so people don't panic.
+Hiperforteca No. its older. Its just that science says its that old because that is the age of the oldest rocks we have found. But there had to be a planet here already for those rocks to form as they did.
There's is a comparison with the sentence 'Oh, look, how lucky we are that we live in thàt specific era!'. Meaning 'We wouldn't have liked to have lived 500 years ago!'. This the essence of 'being', one who is establishing that he is alive, can only do that whilst being alive. Same thing with 'How animal life made it upto humans'. You just nééd to be a human to establish that. If it hadn't evolved up to here, nobody would have bothered about it. I now, gradually, evolve into thinking that there is no 'innate' or 'death', everything that has electrons running around is 'alive'. We just see and define our own features to sth 'being alive' or 'not being alive', but everything is interconnected. If my body is burnt in an oven, there is still the same amount of energy transforming into ashes and smoke, and a certain amount and time of fire (heat). This heat, nor the ashes or the smoke, leaves the planet. The plastic on which I am typing, used to be the skin of a fish, sipped into the ground... oil... plastic. The 'fish' is back... . We take 'life' way to literal, into 'our' context. It is all a mere energy, or transformation of energy.
Makes you really think about the vastness and uniqueness of our universe and how the universe is so mysterious and filled with questions that may only be answered with time, but question is will we have enough time on earth to find out those answers or will the human ares be long gone by then? Or will all life on earth be gone? Will earth even survive long enough? Will we ever know these answers to the curiosity that drives us humans? Will we ever be able to fulfill these questions that burn our minds?
P.s eh I'll be long dead!
PPS most likely
PPPS oh no!
The class of drugs that Levitra, Viagra, Stendra, and Cialis belong to are called PDE5 inhibitors. They work by relaxing tight blood vessels, allowing more blood to surge into the penis and cause an erection, says Gregory Bales, M.D., an associate professor of urology at the University of Chicago.
The little pills do the trick for more than two-thirds of men with Viagra protects the heart (ED). They also work for guys who simply need them for a short time to get their “confidence back,” says Michael Eisenberg, M.D., director of male reproductive medicine and surgery at Stanford University.