Blakjewelry:
The first two is highly unlikely to cause the full destruction of the planet though they have the potential to wipe out life form the planet, even at that I believe if anything happens to the planet before the sun start dying given enough time, new organism will resurface and while thrive until the sun start dying.
As for those religious guys sometimes I wonder if they actually get a glimpse of future and saw the advance man waring against each other, and whether they saw man taking off via spaceship to escape the earth been scotch by the dying sun and their minds could not comprehend and thought of it as rapture and hellfire

Oxytocin:

At the word in bold, New organisms as in??
I don't think new organisms can resurface, owing to earth's atmospheric condition by that time, life would be far from Earth,the radiation from the core the toxic gases in the air by then wouldn't make life possible.

And your second paragraph, I have a relating thought.
What if the death of the sun is explained in the Bible,where it said, and 'a star of heaven fell to earth'. What if this is the religious explanation of the Sun exploding as a supernova? Which in turn is in the next 5 billion years?

johnydon22:


The bolded should be re-evaluated my brother.. That you as an oxygen needing life form is dependent on oxygen for survival doesn't mean every other life form does.

so there is nothing like Impossible for life there are conditions here on earth that we consider impossible to harbour life yet life thrives on them.

Extemophiles...

Read more https://lcogt.net/spacebook/what-are-extremophiles/

there are even earth found organism that can comfortably live without oxygen or even in the dangerous vacuum of space



I doubt if the sun will die in a supernova, rather it should be a slow more deceptive death first it will turn into a red giant.

it will slowly shed of it's shells Check out planetary nebulas and see how it will be.. before collapsing into a white dwarf.

But the earth won't really stay up that long.

-Life on earth will boil away with increase in the sun's temperature
-the planet itself with be engulfed by the enlarged red sun when it gets to the peak of it's red giant stage which might reach up to the orbit of mars.

the demise of the earth is directly roped around that of the sun but the earth won't be here for the sun's final death stages.

Mars, jupiter, and others might.

Oxytocin:

Checked up extremophiles, they do live long and able to withstand some extreme conditions not all.
An organism able to withstand temperatures of over 300°C doesn't necessarily mean, it can withstand very high radiation outbursts,unless we are looking at adaptation.. Surely then, it's not impossible.

You didn't really talk on the topic, will the earth still be a reality long before the slow deceptive death of its sun?

johnydon22:


I gave the answer on the post you might have missed it..

" the demise of the earth is directly roped around that of the sun but the earth
won't be here for the sun's final death stages."

The earth will be during the early stages but will no longer be after it is engulfed into the sun's surface..

Oxytocin:

During the early stages of the demise of the sun.. Hmmm
That means you are trying to say, the points I raised above wouldn't be the causality of earth's destruction or better still has no part to play in earth's doom

johnydon22:


They more likely will result in our own extinction and not that of the planet....

Oxytocin:
For that to result to our extinction, don't you think the earth would have started experiencing a stepwise death?

johnydon22:


If the earth's death is in straight definition with it's ability to sustain life then Yes

seunot:
Haha, how can anyone say the end of the sun will lead to human extinction...Naaaaah!

If humanity can manage to survive the current case of climate change, now add rapid advancement in our civilization that is currently going on. Even in 50 to 100yrs man will start travelling in space talkless of thousand, millions and heck, billions of years.

Straight to the point, the sun wouldn't exterminate life, yes it will end earth as a planet. However, the only thing that will exterminate humans is human! His greed, his inate and inbuilt problem from which every other evil emanates...SELF! It will be his own undoing, if he can't overcome it.

tosyne55:
We are talking of the sun here ,the principal source of earth's energy,that which all other energy is gotten from and you are saying it's death will not anyway exterminate humans??that's delusional.
From your perspective, humans would have probably evacuated earth to another planet courtesy of advanced technology before the death of it's sun,so as not to be terminated along with earth.

Leaving earth means leaving it's solar system to maybe a planet in the ALPHA CENTAURI,a planet which is able to sustain human life. Now if for about 4.7 billion years, man hasn't even fully explored Mars,talkless of of it's solar system, what makes you think they would be able to explore another star system and find a planet in it which will be able to accommodate humans in the next 5 billion years??

seunot:


Now let me ask you a question, can you compare the advancement made in the last 500yrs to the begining of life on earth wch is in millions till 500yrs ago?

Oxytocin:
What makes you think it wouldn't take another millions of years for scientists to achieve another feat like they did this past 500 years??

seunot:


There's no point pressing this argument further. If you believe and are convinced deep in our mind based on the acute curiousity, sheer determination and current breakthrough everywhere, that man wouldn't master interstellar travel in the next 1000yrs at maximum, then the delusion is yours...

Geofavor:
Intrigueing topic, I must say.

currently, it's difficult to say. I, however, like to see the earth as a few-month-old baby experiencing some illness which it will overcome with time. The occurrence of those natural hazards you mentioned doesn't necessarily mean the earth's extinction is fast approaching. This planet (as well as the universe) is continually evolving. It's only normal for the earth to adjust (and try to find balance) to the perpetual changes it experiences. These changes are caused by the matter it habours, of which humans are the NO. 1 culprit. But humans can't bring about the planet's doom.

Humans can only destroy this world with a deliberate desire. All the scientific discoveries and breakthrough and limitless scientific work could, at worst, bring humanity to extinction but not the planet. No. It will always adjust itself . And this adjustments don't always favour us.


The earth will last more than a 1000 years from now. The earth will still be around in the next million years. I can't say the same for humans, though. Let's hope a mad scientist doesn't kill us all one day with some careless work of his/hers.

Oxytocin:


Adjust itself to what?? to suit what conditions??

I believe the earth would continue its normal course, or that, which man left it before his extinction.....since there is no external force acting on the planet, just intrinsic forces . Unless of course it get hits by a cosmic force.. asteroids.... Solar winds etc, thereof , it tends to adjust.

Oxytocin:
What makes you think it wouldn't take another millions of years for scientists to achieve another feat like they did this past 500 years??

Feraz:
If I may come in, I think what he is trying to say is that nature always has a way of redesigning itself no matter the calamity that befalls it. Take for example, Chernobyl which was a waste land after the nuclear incident is beginning to see life back there as plants, grasses and wild animals were found there.

To your question, I think the earth will not last that long because like Johnydon22 said, the demise of the sun may engulf it. . .humans may not be alive to witness the dying stages of the earth due to certain activities of man that may make us extinct (though there may be some human movement to other galaxies to survive) but humans ending the planet, nah! I doubt it! Except a crazy person develops a tech that can split the earth to multiple pieces. . .

It won't. With the pace of researches going on right now, new techs and forms of energy to power those techs will soon be discovered. I recently read of an article by Stephen Hawkings where he is collaborating with Zuckerberg (or so) and if the tech works, one can visit the nearest star - Alpha Centauri in 20 years. We know if this is achieved, modifications would be made and more advanced ones would prop up.

Oxytocin:

At the word in bold, New organisms as in??
I don't think new organisms can resurface, owing to earth's atmospheric condition by that time, life would be far from Earth,the radiation from the core the toxic gases in the air by then wouldn't make life possible.

And your second paragraph, I have a relating thought.
What if the death of the sun is explained in the Bible,where it said, and 'a star of heaven fell to earth'. What if this is the religious explanation of the Sun exploding as a supernova? Which in turn is in the next 5 billion years?

Blakjewelry:

First off, if our haven't started suffering from old age any global damage to life here on the planet recover given enough time. It could take a thousand or a million years but definitely it will, after all nothing can be harsher than conditions at the early stage of earth.
Secondly there are a lot of simulations of even on the earth long before the sun will arrive here. Many suggested from very high pressure when the oceans evaporates
, high radiation when the sun started giving out more juice, to when the moon finally drift away just to mention a few. But in all these I believe many organism will thrive (they could be micro or macro) for a long time adapting to meet many of these challenges.
Now to the religious side, can you imagine what conditions on the earth will be like when our start giving out more ? Though the size of the sun won't increase but the temperature on earth will skyrocket, it will be pure hell. If people on earth are still adapting by then the experience is better not imagined, those people might have gotten a glimpse of the future maybe through thought experiment or through premonition or something but then science and religion were intertwined so your guess is good as mine . one thing I believe is by then we would conquer space travel though we have the means to do that but nobody is taking it serious until when extinction is eminent. We have the design of a craft that can take us to alpha centuri within 10 yrs and with our present technology

johnydon22:


The bolded should be re-evaluated my brother.. That you as an oxygen needing life form is dependent on oxygen for survival doesn't mean every other life form does.

so there is nothing like Impossible for life there are conditions here on earth that we consider impossible to harbour life yet life thrives on them.

Extemophiles...

Read more https://lcogt.net/spacebook/what-are-extremophiles/

there are even earth found organism that can comfortably live without oxygen or even in the dangerous vacuum of space



I doubt if the sun will die in a supernova, rather it should be a slow more deceptive death first it will turn into a red giant.

it will slowly shed of it's shells Check out planetary nebulas and see how it will be.. before collapsing into a white dwarf.

But the earth won't really stay up that long.

-Life on earth will boil away with increase in the sun's temperature
-the planet itself with be engulfed by the enlarged red sun when it gets to the peak of it's red giant stage which might reach up to the orbit of mars.

the demise of the earth is directly roped around that of the sun but the earth won't be here for the sun's final death stages.

Mars, jupiter, and others might.

Dawdy:
These are all speculations. Only God knows. Don't rely on lying Nasa.

Oxytocin:
Mastering Interstellar travel is one hell of a task. One would be required to travel very close to the speed of light, let's not forget, the greater the speed, the greater the mass the greater the possibility of our disintegration and the greater the energy required. Now travelling at that speed with the mass of hundreds of people on the space ship is[b] nearly[/b] an impossible feat.

However, as you said, if with time it's made possible, finding and settling on a habitable planet among billions of other cosmic bodies would take millions if not billions of years to achieve.

erusen:
hey john I am a huge fan, I read your diary.am not an expert on scientific matter,so was wondering where I could start learning science from the simple matter to complex issues?.

Blakjewelry:

Google project daedalus it was conceived in the 70s, now considering our recent advancement in science and technology imagine what can be achieve if we decide to modify the project to meet current tech. The problem is the will to push forward, man always push for something when there is something to gain.
And in response to the issues raised on how an organism can survive such harsh environment, since we are assuming that the cause of the catastrophy is local I.e man made, even if zone layer is ripped it will recover and as far as the magnetic protection is intact, the earth will replenish with time. The only major threat to Earth is that which gave it life, the sun .

johnydon22:


Hello my brother, thank you... i have this idea of opening threads on scientific topic to teach the little things i know in lay man terms.. i have done many of that actually and recently put a (Simplified physics with Johnydon22) series.

I like every other science enthusiast here try with the little time we can spare to bring these to life and we know people appreciate and learn which is rewarding in itself.

But we feel Nairaland should gun towards bringing science topics to the lime light to reach a broader audience.

we that bring up these topics do so with the aim of reaching a bigger audience and to promote science among nigerian youths of which Nl serves as a good platform.

We hope Seun puts this into consideration and we will continue to do our best in this science section, you will be seeing more sir..