The Big One
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Repeated from the other supernova photo thread...
1.
So, how far from a “normal†supernova do you have to be to avoid burning up/burning out the local atmosphere of your own planet?
2.
How many supernova’s are required to create each of the common elements? A “regular†and a regular nova burns (combines) H-H->He, He_> Li and higher as it implodes later in life, and a little bit higher weight .. But those cannot leave the star. They are trapped inside the star’s gravity field.
So, only a supernova cab low elements (isotopes) outside to another star. Can a supernova create several tiers of element-isotope building in its own collapse?
Or are we limited by stellar fusion to “one-nuclei+one-nuclei fusion mass gain per supernova?
3.
Now, there are some 10^54 “heavy weight” atomic nuclei in our solar system. How did they all get here at the same time in interplanetary cosmic space to be trapped by the proto-solar-system mass BEFORE they became planets and asteroids and comets?
4.
Interstellar “dust” clouds are certainly possible. We see them all the time in their glorious colors and shadows. None are faster than light, all are substantially below light speed - as they should be. So, how long did our solar system’s dust cloud “mass” coast through space to get here so they could coalesce into the solar system gravity field in time for fusion to light off the sun and our own earth to be formed 4.5 billion years ago?
One of my personal favorites...probably out of date now.
