Home • About Simply Explained  • Contact Us • 

hello
Questions answered by Mr Joseph Vempeny  India   (Expert Rank: 2831) Member has an expert rating of 100+
 

What conditions, if any, would have allowed life as we know it to exist or not exist on Jupiter?

Discuss this question

Question found in Space & Astronomy
Life is not likely to exist on Jupiter due to many reasons:
1. It is one of the gas giants, mostly made up of gases hydrogen and helium.
The quantity of water and ammonia are present in very small quantities and harbor the basis of terrestrial life is almost missing on Jupiter. These conditions are favorable to any imaginable form of life.
2. As it is so far from the sun the surface temperatures are bound to be too low for life. Going to the interior, the temperatures soar up to something like 20 000 k due to the extreme pressures. Life cannot exist in similar conditions.

3. Jupiter is known as the star that failed to be. If the mass of Jupiter was higher, say including some or all the other planets, it would have been a star.

The facts known about the planets and of life could lead us to the conclusion that even on the terrestrial planets other than the earth life is unlikely to exist as they are too close to the sun and therefore too hot. All the conditions for life as we know it exists on earth only.

click to see other answers to this question
Discuss Answer

What is coefficient in algebra?

Discuss this question

Question found in Maths
If we have in algebra something like 3X + 4Y = 18
X and Y are called variables, 3 and 4 are called coefficients while 18 is a constant.

In 5X the coefficient is 5 and in bX the coefficient is b.

click to see other answers to this question
Discuss Answer

Can light dissipate? Like eventually fade out into nothing? because as far as I know we get light from across our universe and it's still traveling the speed of light so would it ever really stop? Which leads me to think we are definitely moving into a vast empty space since that light that stars give off is sent deep into space deeper then any matter we know of an what happens to it? It doesnt get bounced back at us or space wouldnt be black we would have a definitive end to all this so it's getting absorbed into something or turned into something.could possibly be one contribution to dark energy like say any wasted energy in are universe isn't truly wasted just collected far out into space and basically in a sense recycled.

Discuss this question

Question found in Science In General
It seems you visualize a universe of matter, galaxies and all that in an infinite space without end. It is not as if the material world appeared in an empty space. Space has no existence outside of matter,nor was there any space before matter appeared.
As for light, it does not go out of this world of matter even as light cannot escape a black hole due to immense gravity. To get an answer to your question we have to take the particle aspect of matter that was accepted from even Newtons times, that light propagates as photons. These photons are affected by gravity and the path of light gets curved near galaxies. As such there is no question of light leaving our universe.
The concept of dark energy is something complex. According to one cosmologist, the term dark energy is used to cover our ignorance of what it is. It is not a common form of energy that can be detected by us or can be converted into another form. Obviously light cannot be converted into dark energy.
The space time curvature keeps the light within our universe. It is not dissipated or lost.




Comments :
Thanks but it's still kinda fuzzy for me. If space only exsists with matter then as we think the I'm not going to say universe but rather the matter is expanding and as it does it creates new space? I don't know that concept is hard for me to understand.

click to see other answers to this question
Discuss Answer

So I read that artical that said all the matter we know of is only 5% of what's out their the other is dark energy. Is that energy done creating matter?

Discuss this question

Question found in Science In General
As we understand it, all the matter present in the universe was created at that first instance. What is happening ever since is evolution - controlled changes, growth.

Comments :
But that dosent make sense the big bang theory was baced on the theory that a sudden burst of intence energy constructed all matter then expanded. But if dark energy is pulling us apart or pushing us arpart and that energy makes up 95%of enerything then it has to be able to make more

click to see other answers to this question
Discuss Answer
Discussion:

Some 13.7 billion years back, there was no matter, space or time. All these appeared together. (Space and time has no relevance without matter.) ll th ematter that make up the universe of today existed at that moment in a very tiny space. This is theonly case where scientists can speak of matter with infinite density. All the various physical constants that we discuss today, whose fine tuning allowed the evolution of the cosmos, th eappearence of life and all that story, were encrypted into that primordial matter at that moment of creation. All the laws of nature, all the laws of physics, were provided for the smooth eveolution or growth.

The energy that controlls the evolution of the universe, the dark energy could be the same source from which all this came or it could be different. The fact of the matter is that no increase in the amount of matter has been observed so far. New matter is not created. there is only changes taking place. Right now the only noticable change is the fast expansion.

So if the universe begn in a sudden burst of energy then it would be equal in all directions in spaces vaccum so our univers would be similar to a sphere that's geting bigger right? What do you classify the universe as? Is it everything we can see and observe or is it everything that we exsist in and are apart of? If it's just what you we can see and observe what is space we are moving into called and what shape would it be?

Discuss this question

Question found in Space & Astronomy
I feel I must start at the last part of your question that relates to the first part as well. Our universe does not exist in something, is not growing into something; it exists on its own and grows by itself. That is one way of looking into it. One could also say all this originated from an infinite ocean of energy and exists in it.
Your assumptions at the first part are more or less correct. Some say the universe is expanding something like a balloon being expanded. Spherical, yes; and uniform in all direction.
At present we know only about the universe that is being observed, something like 27 billion light years across. I doubt if there is anything beyond that but nobody knows for certain. There is talk of many universes like ours existing.
Have you seen the section in simplyexplained.com with articles? In the home page, click on the right hand side link view all articles and from the long list of articles you will come across a short one entitled, Nothing and a long one, Cosmology. Both contain answers to many of your questions. There you will see other articles of mine on evolution of life, of humans, geomorphology and the like. I suggest you start with Nothing.


Comments :
Alright thanks

click to see other answers to this question
Discuss Answer

I've tryed to understand relitivity and Einstines theory and all that with time travel and everything but I don't get it. If I was to move At the speed of light sure I'm moving fast but that dosent change time, I'll witness things happen faster and some other cool stuff will happen but I'm going to age the same as people on earth would if I was moving away from it.

Discuss this question

Question found in Science In General
It is impossible for matter, even an electron, let alone a human, to travel at the speed of light. Then it will no more be matter but waves - radiation or photons. If and when you come back from such a travel, (this is very diferent from the time travel of science fiction) you could be anything or any age, in my opinion.

In simple words I also have not understood why they say such things.

Mr. Johnson, you have given good comets on my answers; but you have not rated the first one, the one on colour and races. Did you overlook it?

Comments :
Thanks I appreciate you taking time to answer my questions I'll go back an check it.

click to see other answers to this question
Discuss Answer

So if the universe is not going to pull itself in and it's speed of exspansion is increasing then your not looking at a big bang at all, theirs some other force pushing or pulling it from itself. Then could we predict this is the first time this has happend and there was nothing else like it before?

Discuss this question

Question found in Science In General
Big Bang is still mentioned to signify the beginning of our universe but the scientific community agrees that there was no Bang or scattering. In the very early stages of the universe the rate of expansion was unbelievably high. This was attributed to a force called antigravity. It could very well be what they call the dark energy which causes the present acceleration. Whatever you call it there was a force then and there is one still that controls the functioning of the universe. This same force must be that which caused the complex molecules to form into DNA and living cells and living beings.
I would agree with you that this could be the first and only universe from what we know so far. I am not sure that all will.


Comments :
Thanks that's a really great answer!

click to see other answers to this question
Discuss Answer

So I concluded that energy can't be distroyed or used up only converted or changed into a different type of energy sound, light, heat, and motion. If I swung a baceball bat in space and hit a ball with it would it make a sound? if not that's probably because theirs nothing to resist the ball from moving so theirs no chance to convert any of that energy into sound only motion. Any tips for this?

Discuss this question

Question found in Science In General
Sound cannot travel in vacuum. It needs a medium like air. So you won't hear anything. The ball on the otherhand, instead of travelling a few meters will keep on travelling.

Comments :
Thanks

click to see other answers to this question
Discuss Answer

This is just a thought but what if we thought of the universe as a big gym just it's endless.. Now if we started with a collection of matter that built up due to gravity and started the big bang that sent matter in all direction from the middle of the gym and say the basket ball hoops are pockets of dark matter that we cant see and some of that matter flys through it collecting some of it and then eventually bringing itself back into itself like a big crunch this time with more energy from what it gatherd. Then something happens when that black hole all came together and it exploded again sending matter in all directions again but this time sending it a little bit furthure because of that extra energy so in turn it would pick up more of that energy because instead of just reaching the basket ball hoops it makes it to out side the gym doors creating a chain reaction that makes the universe a never ending cycle.. I don't know what we classify the universe as if its everything we know of but the thing we are moving into has to be so much more vast that we can't even fathum the thought of everything we know of in a bigger container. I believe that "container" would have had to be their so already so it's not doing anything we are just geting lager in it.

Discuss this question

Question found in Science In General
The view you try to express was common among many cosmologists at one time. Even now there may still be scientists who think such a universe that goes on expanding and then contracting into a big crunch that causes the next big bang. But certain new facts in our knowledge of the cosmos makes me think it unlikely.

The recent discovery of the accelerating universe, that led to the concept of dark energy makes such a possibility unlikely.

Comments :
Hmm then if their isnt going to be a crunch then there was no time before this right? Like it would mean this is the first time this has ever happend in the universe right?

click to see other answers to this question
Discuss Answer

I had this thought that what if the universe isent expanding but growing it would explain how everything came to being right? Like I don't see how it could have come from nothing but then again it had to start somewhere right?

Discuss this question

Question found in Space & Astronomy
In a sense, expanding is growing in size; not a biological process. The cause of this expansion is not well understood today. First it was attributed to an explosion where matter was scattered from the original primordial matter. Later this Big Bang theory was abandoned in favor of an Inflation Theory. Today even this is questioned as the cause of that inflation anti gravity or dark energy is not understood by anyone.
Cosmologists do not anymore think that all this came from nothing. The most sensible explanation so far is that the primordial matter came from an infinite ocean of energy that was always there. Some call this vacuum state, some call this Nothing and others call it God.


Comments :
Thanks

click to see other answers to this question
Discuss Answer
Page - 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28 - 29 - 30 - 31 - 32 - 33 - 34 - 35 - 36 - 37 - 38 - 39 - 40 - 41 - 42 - 43 - 44 - 45 - 46 - 47 - 48 - 49 - 50 - 51 - 52 - 53 - 54 - 55 - 56 - 57 - 58 - 59 - 60 - 61 - 62 - 63 - 64 - 65 - 66 - 67 - 68 - 69 - 70 - 71 - 72 - 73 -
 Top of Page Terms and Conditions Privacy Disclaimer

© Simply Explained