I am getting conflicting answers from science sources. Therefore, I would like your educated opinion.

One source states the sun will never explode because its mass is not large enough to cause it to explode at the end of its life cycle.
https://www.google.com/amp/s/www.univers...plode/amp/

Another source states it will explode.
https://scienceline.ucsb.edu/getkey.php?key=71

What say you?

It will become a red giant in 4 billion years... this is a sort of "explody" process. But it doesn't have enough mass to go supernova at the end of its life cycle. It will instead cool into a white dwarf after it is done being all red gianty.

Quote:white dwarf

Jeff Sessions?

From what I understand, the thing is that in four or five billion years, the sun will have used up all its hydrogen, it will be left with helium, which will cause it to expand and destroy the Earth. Note: this is almost certainly a vast oversimplification, but massive expansion is not the same as a supernova.

Both are theories in the real sense. The thing is, we only know so much. When I studied Solar System Astrophysics many years ago, Pluto was still considered a planet, and Jupiter now has a bunch more identified moons. We are still learning as we go. I'm not going to be here in 4 or so BY when whatever happens, happens.

(August 29, 2018 at 9:49 pm)Minimalist Wrote:

Quote:white dwarf

Jeff Sessions?

I think Red Dwarf would suit him better, specifically this scene:





I can't find the scene from the end of that episode where Kryten finally manages to override his inability to actually call Rimmer a smeg-head on Youtube.

(August 29, 2018 at 9:46 pm)Kit Wrote: I am getting conflicting answers from science sources.  Therefore, I would like your educated opinion.

One source states the sun will never explode because its mass is not large enough to cause it to explode at the end of its life cycle.
https://www.google.com/amp/s/www.univers...plode/amp/

Another source states it will explode.
https://scienceline.ucsb.edu/getkey.php?key=71

What say you?

Depends on what you mean by explode.

Will the sun suddenly go off, releasing as much energy in its final few seconds as it did during the entire rest of its 10 billion year life?  No.  The sun will never undergo core collapse supernova explosion.    The sun has only a fraction of the mass necessary to trigger that kind of terminal explosion at the end of its life.

But the sun will undergo a prolonged, slow motion explosion after consuming all the hydrogen in its core, ignite the ash from its hydrogen burning life and inflate into a red giant.   Basically the sun at this stage will become so bloated and push its own surface so far from its core, that its own gravity will begin to lose hold of its own outer layers.   So the outer layer of the sun will be gradually blown out into space by the energy still being pumped out by the core, in a sort of slow, long lasting explosion that may exhibit multiple pulses. The material blown out this way will form what is called a planetary nebula, which is an expanding sphere of luminescent gases. Think of it as a sort of sedate explosion that takes place over millions of years rather than a few seconds. But it’s slow speed aside, it will blow a substantial chunk of the sun’s mass out into space before it is spent.

If my DevastatStar™ mega weapon works, it will DEFINITELY explode.

🤫

(August 29, 2018 at 11:04 pm)Anomalocaris Wrote:

(August 29, 2018 at 9:46 pm)Kit Wrote: I am getting conflicting answers from science sources.  Therefore, I would like your educated opinion.

One source states the sun will never explode because its mass is not large enough to cause it to explode at the end of its life cycle.
https://www.google.com/amp/s/www.univers...plode/amp/

Another source states it will explode.
https://scienceline.ucsb.edu/getkey.php?key=71

What say you?

Depends on what you mean by explode.

Will the sun suddenly go off, releasing as much energy in its final few seconds as it did during the entire rest of its 10 billion year life?  No.  The sun will never undergo core collapse supernova explosion.    The sun has only a fraction of the mass necessary to trigger that kind of terminal explosion at the end of its life.

But the sun will undergo a prolonged, slow motion explosion after consuming all the hydrogen in its core, ignite the ash from its hydrogen burning life and inflate into a red giant.   Basically the sun at this stage will become so bloated and push its own surface so far from its core, that its own gravity will begin to lose hold of its own outer layers.   So the outer layer of the sun will be gradually blown out into space by the energy still being pumped out by the core, in a sort of slow, long lasting explosion that may exhibit multiple pulses. The material blown out this way will form what is called a planetary nebula, which is an expanding sphere of luminescent gases.  Think of it as a sort of sedate explosion that takes place over millions of years rather than a few seconds.  But it’s slow speed aside, it will blow a substantial chunk of the sun’s mass out into space before it is spent.

That is pretty much how I learnt it. But I'm a skeptic even for the physics that I learned in university, even while using the electromagnetic theory and mechanics as a career after I graduated. This in no way invalidates what physicists teach us, before some religious person comes in to say, "AHA, they don't know, either!" Just because I'm skeptical of some theories is one thing. The buy-bull? That rag is so full of holes that any person who hasn't had their logic knob broken off ought to understand how untruthful it is.

(August 29, 2018 at 11:47 pm)The Valkyrie Wrote: If my DevastatStar™ mega weapon works, it will DEFINITELY explode.

🤫

I met a loyal minion looking for his mistress.  Do you know him?

---

(August 29, 2018 at 11:50 pm)Fireball Wrote:

(August 29, 2018 at 11:04 pm)Anomalocaris Wrote: Depends on what you mean by explode.

Will the sun suddenly go off, releasing as much energy in its final few seconds as it did during the entire rest of its 10 billion year life?  No.  The sun will never undergo core collapse supernova explosion.    The sun has only a fraction of the mass necessary to trigger that kind of terminal explosion at the end of its life.

But the sun will undergo a prolonged, slow motion explosion after consuming all the hydrogen in its core, ignite the ash from its hydrogen burning life and inflate into a red giant.   Basically the sun at this stage will become so bloated and push its own surface so far from its core, that its own gravity will begin to lose hold of its own outer layers.   So the outer layer of the sun will be gradually blown out into space by the energy still being pumped out by the core, in a sort of slow, long lasting explosion that may exhibit multiple pulses. The material blown out this way will form what is called a planetary nebula, which is an expanding sphere of luminescent gases.  Think of it as a sort of sedate explosion that takes place over millions of years rather than a few seconds.  But it’s slow speed aside, it will blow a substantial chunk of the sun’s mass out into space before it is spent.

That is pretty much how I learnt it. But I'm a skeptic even for the physics that I learned in university, even while using the electromagnetic theory and mechanics as a career after I graduated. This in no way invalidates what physicists teach us, before some religious person comes in to say, "AHA, they don't know, either!" Just because I'm skeptical of some theories is one thing. The buy-bull? That rag is so full of holes that any person who hasn't had their logic knob broken off ought to understand how untruthful it is.

There is.  Finding a type ii supernova whose progenitor Star is less than 1.4 Solar mass will decisively invalidate the physics of stellar evolution as we think we understand it.