Final answer:
Scientists believe our solar system formed after nearby supernovae explosions due to the existence of heavy elements and the enrichment of subsequent generations of stars through supernova explosions.
Step-by-step explanation:
Scientists think that our solar system must have formed sometime after nearby supernovae explosions due to the existence of heavy elements and the enrichment of subsequent generations of stars through supernova explosions. The first generation of stars expelled heavy elements in supernova explosions, and these heavy elements were then incorporated into subsequent generations of stars and planetary systems. The existence of heavy elements in our solar system indicates that it formed after nearby supernovae explosions occurred.
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