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Hydrogen nuclei fuse together to form what?

Hydrogen fusion occurs where in a star?

Energy is transferred where in a star?

Energy is radiated from what in a star

When there is in-sufficent hydrogen in a core, a star can expand to become what?

When helium fusion ends, stars become what?

When does fussion stop?

When fussion stops, the star explodes and becomes what?

After it's death remains of stars become black holes or...