According to the theory, the earth is being destroyed . Theories included the solar crisis, the extinction of honey bees, the change of magnetism poles, and etc. If the earth was destroyed, there will be a place for human to Continue life ?
Faezeh
You say the 'land is being destroyed'. Not sure what you mean by this?
But if the Earth was 'destroyed', then the likelihood of the human species surviving at present is very low - even though there are trillions of Earth-like planets in the Universe.
There are an estimated 5 billion trillion planets in the Universe. Hundreds of trillions of these are likely to be very Earth-like.
However, none are reachable with our present technology, and there are no other Earth-like planets in our solar system.
If Earth were destroyed, small numbers of survivors may live for a while in Earth orbit on the space station, or if a Moon or Mars-base was established a few may survive there for a short while.
https://www.nasa.gov/content/finding-life-beyond-earth-is-within-reach
Yes! Life out of Earth is possible 1. in Heaven (without misery or restlessness) 2. in Hell (without rest).
We must not confuse terms. One thing is "destroyed" (i.e., totally fragmented or consumed by the Sun's extreme heat), which will occur in several billions years to come. Other is becoming inhabitable for some or almost all species. As we humans are going behaving, in a few centuries, it may be such a case for humans (most of tem, some will survive, and perhaps evolve). Many species would become extant as well. In a case of a hostile environment for humans in centuries to come, doubtedly we will find some place better than Earth for surviving for long. For sure, there are several million places able to sustain our life, but we will not be easily capable to get there, at least in a century or so. Unless we discover something we really don't know that we don't know yet.
Many life-extinction events took place in the Earth's long history, the most dramatic were collision with large asteroids that triggered massive volcanic eruptions. But life had the capacity to re-start itself and flourish later on (but not exactly with the same species as before).
This scenario will happen again in the future no doubt. The magnetic flip-flop that you mentioned might be the first to take place. Some humans might be exterminated, but not all I would think.
There is no fact or likelihood which supports the assertion that higher developed life exists in other cosmic systems so that human receive the chance to come in contact.
Not certain. It may be possible for a short while though but not perpetually.
Well, physicists and astronomers say the universe is governed by the same laws everywhere. Considering that there are trillions of galaxies and each galaxy has trillions of stars, I would say that the probability of extraterrestrial life somewhere else in space is incredibly high. But it does not prove it exists.
However, there is not any prove that God exists but billions of people believe in a God.
But if the universe is the same everywhere, there is nothing against evolution taking place everywhere as well. I mean what ever it happened that made possible life to exist on Earth it surely is taking place in a unknown planet orbiting a star in a galaxy faraway from us and hidden by the vastness of space.
On the other hand, 99% of all information about aliens governments deny, or they are fraud or inexplicable facts.
Anyhow, it seems to be more important then knowing if there is extraterrestrial life whether they are able to come here because we are not able to go there. Or even why they would come here.
Yes, extraterrestrial life certainly exists but where we do not know.
Faezeh, very good question, but first what is life?.....
For me that I come from the geological field, LIFE can be defined simply as "energy exchange", nothing more ... if you accept this premise you should not have any doubts about it.
But to answer you in a more specific way you can go see the publication of 2013 that I will quote you next and where diatoms appear inside a meteorite .......
FOSSIL DIATOMS IN A NEW CARBONACEOUS METEORITE N. C. Wickramasinghe, J. Wallis, D.H. Wallis and Anil Samaranayake
Journal of Cosmology, Vol, 21, No, 37 published, 10 January 2013
Dear Faezeh,
Your question obviously stimulates a broad debate.
I'm aware of the fact that it's not the core of your question. But I fully agree with Gerardo, not to mix things. It is for sure that the earth will be destroyed in some billions of years when the Sun will totally consume the Earth. But this is a natural process and humankind will surely not experience this event. Even the most resistant species becomes extinct after some 100 Ma.
Extinction of honey bees is a (possibly) man-made problem, the reasons for that phaenomenon are still unsolved. You just mentioned this as an example for destruction of the environment. I strictly warn to overemphazise some single environmetal problems and to conclude that these problems will destroy Earth. These problems might cause some minor extinction events, if at all. If honey beens should die off, other insects will take their role.
All the current environmental problems are negligible compared to environmental crises like the P/T boundary and further scenarios like this, however, the Earth was not even destroyed by these tectonic/volcanic/meteorite impact processes that dramatically changed the environmental conditions on Earth. Yes, the "big five" were extreme mass extinction events but live on Earth survived and the dramatic change of the living conditions during these crises can not be compared to our present relativly small environmental problems. Just to give you an example: surprisingly, the completely irradiated zone around the nuclear power plant of Chernobyl (Ukraine) is today populated by a rich flora and fauna just some tens of years after this dramatic accident.
By the way, Michael, there is no evidence that the impact of large asteroids ever triggered massive volcanic eruptions. See for instance: Ivanov, B.A., and Melosh, H.J., 2003, Impacts do not initiate volcanic eruptions: Eruptions close to the crater: Geology, v. 31, p. 869–872.
Impact-triggerd volcanism is more or less a "Hollywood scenario".
To come back to your question finally: I agree with Robert. There are at least billions of Earth-like planets, but none are reachable with our present technology. However, I'm sure that Earth will not be destrioyed by one of the processes mentioned and humankind is not forced to find an extraterrestrial anthroposphere within a short time.
All the best,
Elmar
Yes, there will be a place and the Humanity of that time will be incredible. They will have a great heart and the war will never exist anymore.
Still not certain of the earth will be destroyed. Anyways, if that is so, think of heaven or hell. These are the last living places out of earth.
During the history of the Earth, there were five biological extinctions, of which the P/Tr period was the largest and the most recent one was the extinction of dinosaurs. According to current science and technology and research, human beings cannot survive in outer space at present.
Oh, if u mean by life, human life.. the answer must be no.. but if u wonder abt other creatures, we may have a more comlicated suggestions..
Scientifically, there r some theories based on some small evidences abt the existence of water or its gazous form.. quite similar to the the very first theories of the apparition of life in the earth (germes interstellaires etc..)
http://mobile.lemonde.fr/sciences/article/2017/03/01/des-microfossiles-vieux-de-3-77-milliards-d-annees-decouverts-au-canada_5087765_1650684.html?xtref=http://m.facebook.com/
Read my answer. I said, like a human being, live is not possible elsewhere apart from Earth 🌍 planet.
To distinguish between lower issues of organic holistic systems of energy exchange and higher developed life is important in this discussion.
As far as I know, water, oxygen and a favorable temperature imposed by the position of the earth in our solar system makes our Earth unique. So conditions for survival of organisms (including man) only exists on earth at present. But that does not rule out the possibilities of existence of other earth-like planets that are yet to be discovered due to limitation of our present technology.... may be. Again evolution is a continuous process and nobody can say assuredly if the future will not produce humans that doesn't need all these basic things for survival....may be. If these two conditions are met, then the future is bright, but for now, life exists only on earth
Is life possible out of the Earth?
hard - unbelievably, but ....?
Life exists only on Earth, as for life to exist on any other planet this planet must have right conditions for photosynthesis i-e, the planet must have water, Carbon dioxide and a suitable temperature.
Good morning to everybody.....if you go up from the "scientific" perspective and look in
https://youtu.be/frbhePgen_0 .....maybe you can see something else
Just to take the discussion out of this endless cycle, please consider the following "irrational assumptions":
What if "extraterrestrial life" evolved in a different way than ours?
What if that life is based on iron, and argon instead of carbon and oxygen?
What if there is an endless number of chemical elements that we don't even know?
What if that life evolution was physical- or chemical-based instead of biological?
I think that this ongoing discussion is highly influenced by the "green Tall alien" image imprinted in our minds since childhood... Can we just get ride of that image and have a real discussion about the possibilities out there?
I answer the question as a science student!
Earth is unique in the Solar System as being the only planet which is able to support life in all its forms: from basic living micro-organisms to highly sophisticated and intelligent human beings.
life is simply active processing of DNA
acc to our knowledge there is only planet earth where DNA n RNA ( RNA is closure molecule to DNA) formed
means there is no such chemical environment is present on other planets, for the production of life molecules like DNA ….
Some scientists stated that some faraway planets might have life where nitrogen is in the form of liquid ( as we have water =H2O ) for producing life molecules, not yet confirmed, it's just a suspicious expectation and a possible occurrence as per their ( scientists) perception
I am not stating that DNA is the only life molecule but on earth it is
7 Earth-like planets orbiting a star just 40 light-years away - these planets potentially could be suitable for life: A report of NASA
https://www.vox.com/2017/2/22/14698030/nasa-seven-exoplanet-discovery-trappist-1
Regards
For humans, I am not sure that there will be a suitable place for living outside the Earth; however, there are other creature that can live in extraordinary environments that may cause death to humans. For example, some types bacteria can use the radioactive Uranium for converting water to an energy source for living; https://www.sciencedaily.com/releases/2006/10/061019192814.htm
No, it is not possible.
We have to search a true copy of planet Earth, which is not possible. Even if we search such copy, it is an expensive option to shift the entire population.
Life support system on another planet will be different and may not be compatible to the one of the planet earth.
Dears,all things ,specially in biodiversity some plants are being extinct due to the non availability of suitable environment(food on which they rely are not available to them for survival) and changes in weather & climate. Animal species facing also the same condition.so every thing/species/organisms on this planet will extinct not promptly but slowly and gradually.same is our planet earth will also moving to wards destruction and ultimately our life will turn in other world (Heaven or Hell)therefore it is not possible to live on other planet like we live on earth.It is then possible only when the same favorable conditions on earth & on the other planet we want to live are alike ,but this is yet to be explore and discover.
Being a student of science how you will mark it.if total marks are 10?
Based on the present knowledge, it can be said that there is no other planet like 'Earth' in the universe where human can live - this is true. Therefore, we have to save our planet so far possible by human.
Regards
No thing is impossible, this universe is huge, we can not understand details
I presume we mean to ask, have we found life outside of earth? Unfortunately no, not on moon rocks and not from meteors that fell to earth. But scientists are optimistic, at least the astro-biologists ought there are, who tell us that Titan (one of Saturn' moons) and Europa (one of Jupitar's moons) have water underneath the surface, Europa seeming to be the more interesting one, it is hypothesized that there may be an ocean of water under its surface. So all we have to do is fly a probe to Eurpoa rigged with a drill and fancy submersible to analyze life, break through the milometers of ice, dip into the water and look for life. We just have this little distance problem of about 630 million milometers, a few billion dollars and some fancy equipment.
Based on our present research, no such evidence(s) is/are available to prove or argue about existence of life outside the planet earth. (Lack of knowledge)
If life exists outside the planet earth, we can't shift any living creature from here. (Technology problem)
If we shift something from here, that living creature may not survive over there. (Different life support system)
This planet earth has been designed for the present available life. Keep it surviving and enjoy.
I hear you Kenneth. Recalculating then.... Indeed, I think your point about spending our money (world economy) fixing our planet, being more environmentally conscious and stop denying climate change will take us a little further. I can see your point from this perspective, if we didn't learn from our mistakes here on earth, what would be the point going to other planets to settle, with the same flaws. I like Jeremy Narby's idea about the need learn how to transform ourselves into intelligent predators, respecting other life on the planet. We need to learn that lesson first.
But now really Kenneth, be honest, are you not curious as to whats out there, and even if you were convinced they was nothing, would you not like to explore. I'm an explorer, we all are, just observe kids playing outside, they are scientists at heart. Its in our nature, to explore, even if it was just because we could. But getting back on topic, and to attempt to answer Faezah's question, its very likely NASA, Space X, and other nations involved will send people to Mars someday, it is expected to occur around 2030-2035. Will today's generation see that, probably yes, I am convinced i would see this. But to settle there, make it home? I don't think that' going to happen in our lifetimes or in a long time coming. But I wish to share the words of the late great Carl Sagan who once said:
“The Earth is the only world known so far to harbour life. There is nowhere else, at least in the near future, to which our species could migrate. Visit? Yes. Settle? Not yet. Like it or not, for the moment, the Earth is where we make our stand. It has been said that astronomy is a humbling and character-building experience. ... To me, it underscores our responsibility to deal more kindly with one another and to preserve, and cherish, the pale blue dot; the only home we've ever known.”
Sure Kenneth.i heard someone say once, if the earth dies, we die, but if we die the earth lives. We just need to take better care of the earth and our fellow man.
The universe is so big that although it is not we can say it is infinite.
In this way, anything that we observe that happens, react, occur, take place, forms, weathering, and so on, is surely repeated infinitely somewhere else in this universe, so does life, so does O2, O3, H2O, planets, moon, tidal, etc...
To deny this is to deny science as we understand it.
But as long as no prove of any extraterrestrial life has been presented life only exists in our planet.
:))))))))
Kenneth,
there is a moment in life that look back in your life and you think "why not?"
I am also going, doesn't matter what's there.
:)))))))))
Kenneth, extraterrestrial life does not mean intelligent life.
UV was probably one of the causes for the first form of life exist on Earth.
have you any time though what can be the reason that the dinosaurs lived more then 200 million years and did not became intelligent? Or fish? Or birds? Or other reptiles and mammals? Not even other primates?
Not for humans to settle in.
Human life evolved here under specific conditions (need oxygen, etc).
No other place will have similar set ups for the humans to settle.
The ONLY option is to fix all the human-caused problems on Earth.
Many of the things available today once seemed to be impossible and far-fetched. I do believe that life on another far away planet may exist and someday the man's unended quest for discovering the unknown frontiers would actualize such a fantastic dream which has preoccupied man's mind for years.
Successes in building and navigating rockets allowed to begin a close space exploration. Since the first visit of humans to the Moon, several key strategic issues have been identified in colonizing close planets opportunities.
The most important one is developing portable, compact, and safe energy sources utilizing nuclear materials - its history and some latest developments can be seen here:
https://en.m.wikipedia.org/wiki/Nuclear_power_in_space
https://www.youtube.com/watch?v=KobRfGqlpGc
Those are first steps, but the direction is clear - durable and good capacity portable energy reactors are required at any new planet or a satellite to manufacture physical conditions satisfactory with human life requirements. It is not dreaming any more - humans have begun practical exploration technology studies and tests. Then, the planets colonization and exploitation stage will follow.
The time of those developments is difficult to anticipate - it took near hundred years to built the contemporary commercial aviation, today's space stations with astronauts leaving there from months to a couple of years were built in approximately fifty years. Humans' Plan B is launched with first practical steps.
No, it is not possible.
We have to search a true copy of planet Earth, which is not possible. Even if we search such copy, it is an expensive option to shift the entire population.
Life support system on another planet will be different and may not be compatible to the one of the planet earth.
Earth is Within Reach
755409main_webb.jpg
The James Webb Space Telescope (artist's concept above) will be one of the primary instruments scientists use to continue the search for planets outside our solar system.
Credits: NASA
Many scientists believe we are not alone in the universe. It's probable, they say, that life could have arisen on at least some of the billions of planets thought to exist in our galaxy alone -- just as it did here on planet Earth. This basic question about our place in the Universe is one that may be answered by scientific investigations. What are the next steps to finding life elsewhere?
Experts from NASA and its partner institutions addressed this question on July 14, at a public talk held at NASA Headquarters in Washington. They outlined NASA's roadmap to the search for life in the universe, an ongoing journey that involves a number of current and future telescopes. Watch the video of the event:
Leading science and engineering experts discuss a scientific and technological roadmap to lead to the discovery of potentially habitable worlds among the stars.
Credits: NASA TV
"Sometime in the near future, people will be able to point to a star and say, 'that star has a planet like Earth'," says Sara Seager, professor of planetary science and physics at the Massachusetts Institute of Technology in Cambridge, Massachusetts. "Astronomers think it is very likely that every single star in our Milky Way galaxy has at least one planet."
NASA's quest to study planetary systems around other stars started with ground-based observatories, then moved to space-based assets like the Hubble Space Telescope, the Spitzer Space Telescope, and the Kepler Space Telescope. Today's telescopes can look at many stars and tell if they have one or more orbiting planets. Even more, they can determine if the planets are the right distance away from the star to have liquid water, the key ingredient to life as we know it.
The NASA roadmap will continue with the launch of the Transiting Exoplanet Surveying Satellite (TESS) in 2017, the James Webb Space Telescope (Webb Telescope) in 2018, and perhaps the proposed Wide Field Infrared Survey Telescope - Astrophysics Focused Telescope Assets (WFIRST-AFTA) early in the next decade. These upcoming telescopes will find and characterize a host of new exoplanets -- those planets that orbit other stars -- expanding our knowledge of their atmospheres and diversity. The Webb telescope and WFIRST-AFTA will lay the groundwork, and future missions will extend the search for oceans in the form of atmospheric water vapor and for life as in carbon dioxide and other atmospheric chemicals, on nearby planets that are similar to Earth in size and mass, a key step in the search for life.
"This technology we are using to explore exoplanets is real," said John Grunsfeld, astronaut and associate administrator for NASA's Science Mission Directorate in Washington. "The James Webb Space Telescope and the next advances are happening now. These are not dreams -- this is what we do at NASA."
There is a good chance that there are several times more planets just like ours. It’s exciting to think we may discover life on one. The chances of life being on another planet would say: Yes, life likely exists beyond earth.
"Biochemical Keys to the Emergence Of Complex Life" by Dr. Kenneth M Towe .
Good article. Regards
Let us preserve this very earth as much as we can. Chances that we can go and live on other yet to be discovered planet out there are very slim. There is no convincing evidence of life elsewhere
Earth is unique in the Solar System and has been identified as the only planet that is able to support life in all its forms: from basic living micro-organisms to highly sophisticated and intelligent human beings. There are many reasons why this happens. Which connotes that the Earth has a breathable atmosphere. Oxygen is the gas that is required for the life of most creatures. This is present in Earth's atmosphere and also in water. Oxygen is constantly put into the atmosphere by plants and trees. Earth's atmosphere also contains a small amount of carbon dioxide. This is a poisonous gas which makes up most of the atmosphere of planets like Venus and Mars and makes them unable to support human life. However, its smaller presence on Earth is useful as it helps to moderate the planet's temperature and is absorbed by plants during photosynthesis to produce oxygen. Hence, nothing can destroy the earth totally but can be influenced or affected by one environmental factor or the other.
People are already leaving for years in the orbital space stations or submarines. The question is not whether people can "live out of the Earth", but whether life conditions can be provided, and what's the reason for that.
The global goal is human civilization survival utilizing sciences and technologies knowledge base. Space exploration and exploitation are the important derivative questions.
What space - most likely is the close space that our rocket engines can allow us to reach in a reasonable time, and our energy producing devices (compact atomic energy stations) can provide human normal conditions for the expedition duration.
What should we do there? It depends on local conditions - first is to study it, and then to explore it with an eye on a possible exploitation, and even on a colonization. It will all depend on what is cost effective given the local physical, chemical., and biological conditions. It is going to be a balance at any given time as to what we want as a human civilization, and what we can built and afford at that time.
Look at our own history - it is only several centuries ago as the key geographic discoveries were made. Today we have the world Internet and mobile communication devices reaching any point on our planet. Atomic energy was discovered close to the middle of the XX century - today atomic energy stations are the major or substantial source of the energy on the planet.
Almost the same time were launched first rockets with the orbital trajectories around the planet - today we have orbital stations exploring our closest space and exploiting business opportunities in communications, navigations, meteorology, geology, climatology, and many other things. Humans have already visited the Moon! Who could imagine something like that even a century ago?!
Life is only possible on earth. It is not possible on any other planet in the galaxy.
"Best to stay home and do our best to keep from killing one another." (Dr.Kenneth) - This is the conclusion. Regards
"Best to stay home and do our best to keep from killing one another." (Dr.Kenneth) .Best regard.
Life is probably very common in other solar systems, but it may not be of the same type as on earth, therefore impossible to survive on different temperature/ air pressure conditions. The other unknowns are how to discover far-away life-bearing places and how to get there. So, better preserve Earth intact, preferably in its pre-climate change condition.
We think there may be 3 different types of civilization in the Universe. This is called the Kardaşev Scale.
Type I: A civilization that has the power to use all the energy of the planet in which it lives. We are in about 0.73 of this scale. We are now in the transition from Type 0 to Type I civilization, and maybe we will become Type I civilization in 100 years.
Type II: A civilization that can use all the energy of its own sun. This means achieving an engineering that looks like science fiction but is possible in theory (eg building a Dyson Sphere that surrounds the Sun).
Type III: A civilization that knows the galaxy it is in as well as the back streets of the neighborhood and can use its energy source in every corner of the galaxy.
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