- #1
ExNihilo
- 33
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Hi,
I don't know what is the generation number of our solar system. But it is certainly not the first generation of stars. Because the heavy elements that made up the planets must have been synthesized during the supernovae of earlier generation stars.
Let's assume a star massive enough to end as a supernovae. Whatever matter which remains or synthesized are spread in space to form another dust cloud, waiting to become another star.
Q1. A star dies because it had consumed all of its hydrogen. So where does the hydrogen come from to allow subsequent generations of stars to light up again?
Q2. Is it reasonable to assume that Hydrogen will become rarer and rarer in the future? Therefore no more bright long lasting stars like ours?
Q3. Let's assume that the expansion of the Universe is non stop. At one time, would it be so "thin" and disperse that matter could no longer gather together to form new stars?
Thanks in advance for any guidance.
I don't know what is the generation number of our solar system. But it is certainly not the first generation of stars. Because the heavy elements that made up the planets must have been synthesized during the supernovae of earlier generation stars.
Let's assume a star massive enough to end as a supernovae. Whatever matter which remains or synthesized are spread in space to form another dust cloud, waiting to become another star.
Q1. A star dies because it had consumed all of its hydrogen. So where does the hydrogen come from to allow subsequent generations of stars to light up again?
Q2. Is it reasonable to assume that Hydrogen will become rarer and rarer in the future? Therefore no more bright long lasting stars like ours?
Q3. Let's assume that the expansion of the Universe is non stop. At one time, would it be so "thin" and disperse that matter could no longer gather together to form new stars?
Thanks in advance for any guidance.