University Catalog. Academic Majors. The university confers bachelor's degrees for completion of academic disciplines established by the faculties of the colleges of Agriculture and Natural Resources, Arts and Sciences, Business, Education, Engineering and Applied Science, and Health Sciences.
1 When a star exhausts the hydrogen in its core, it becomes a giant or supergiant. 2  sun become hot enough to fuse helium into carbon. 3  sun become hot enough to fuse carbon into heavier elements.
What happens to the Helium? Most stars, after converting a significant portion of their hydrogen to helium undergo an internal change. The internal core collapses, and heats up, until it is hot enough to fuse helium into larger atoms, for instance, by combining three helium atoms into carbon. At this same time, some helium will fuse with that carbon to produce oxygen. Outside the core, in what's called the envelope, there is still enough hydrogen to fuse into more helium. But the core begins fusing into larger atoms. This, by the way, is the transition from a 'normal' star like our Sun to a Red Giant. After the red giant phase the Sun will lose its outer layers leaving behind its helium-rich core, which will gradually cool over the lifetime of the Universe.