- #1
Holocene
- 237
- 0
Every atom in our body, was once contained with an ancient, dying star.
No?
No?
Are Our Atoms Stardust or Nuclear Waste?
- Context: High School
- Thread starter Holocene
- Start date
Click For Summary
Discussion Overview
The discussion revolves around the origins of atoms in the human body, specifically whether they are remnants of ancient stars or products of nuclear processes. Participants explore concepts related to nucleosynthesis, the formation of elements in stars, and the implications of these processes for understanding human composition.
Discussion Character
- Exploratory
- Conceptual clarification
- Debate/contested
Main Points Raised
- Some participants assert that every atom in the human body originated from ancient, dying stars.
- Others agree with this view, referencing nucleosynthesis as a supporting concept.
- One participant notes that while hydrogen and helium were created in the early universe, it is not guaranteed that the hydrogen and helium in our bodies originated from stars, as they could have formed from the Big Bang.
- Another participant emphasizes that while most elements lighter than potassium were formed in early stars, heavier elements were produced in supernovae, suggesting a complex history of element formation.
- A contrasting perspective is presented, suggesting a less romantic view that humans could be seen as composed of nuclear waste from stellar processes.
Areas of Agreement / Disagreement
Participants generally agree on the connection between atoms and stellar processes, but there are competing views regarding the specifics of how these atoms originated, particularly concerning the roles of the Big Bang and supernovae.
Contextual Notes
Some claims depend on definitions of "stardust" and "nuclear waste," and there are unresolved questions about the exact processes involved in the formation of lighter versus heavier elements.
- #2
waht
- 1,502
- 4
Yes.
- #3
Holocene
- 237
- 0
what said:
Thanks. I had thought so, as I remember reading about neucleosynthesis.
Just checking, as I'm making a short video.
- #4
waht
- 1,502
- 4
Our atoms began as hydrogen atoms until they were fused together to form an entire periodic table of elements in a supernova explosion billions of years ago. Cool heh.
- #5
mgb_phys
Science Advisor
Homework Helper
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- 15
Hydrogen was created in the early universe along with helium (although almost all helium on Earth is the result of alpha particles from radiaoctivity)
Everything lighter than about potassium was created in the early generation of stars, anything heavier was created by a supernova.
Although only iron and heavier NEEDS a supernova to be produced most early stars were pretty metal poor and so a lot of lighter metals actually originated in SN.
Everything lighter than about potassium was created in the early generation of stars, anything heavier was created by a supernova.
Although only iron and heavier NEEDS a supernova to be produced most early stars were pretty metal poor and so a lot of lighter metals actually originated in SN.
- #6
DaveC426913
Gold Member
2025 Award
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Holocene said:
In principle, no. In practice, probably yes.
It is not guaranteed that the Hydrogen and Helium in your body was part of a star; it could have been formed directly from the aftermath of the BB.
- #7
Holocene
- 237
- 0
what said:
There is also the less romantic view that we are compiled from nuclear waste; mere byproducts of stellar fusion...
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