Stunning James Webb images show birth and death of massive stars

I wish they had links to the full res in the article. Annoying to have a "stunning image" but it's only a 1080x1080 jpg

If it's not seen as much, that probably means the green material is heavier than iron. It's less common, but large enough stars can fuse even heavier elements. That's where all those elements on Earth came from in the first place.