Q: What celestial events are the source of elements heavier than iron?


Read this paragraph and choose the correct option from the provided answers:

Figure 32.21 Supernovas are the source of elements heavier than iron. Energy released powers nucleosynthesis. Spectroscopic analysis of the ring of material ejected by Supernova 1987A observable in the southern hemisphere, shows evidence of heavy elements. The study of this supernova also provided indications that neutrinos might have mass. (credit: NASA, ESA, and P. Challis).

 Choices:

- neutrons

- galaxies

- Space

- supernovas


A:
supernovas