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.
When the protostar starts fusing hydrogen, it enters the main sequence phase of its life. Stars on the main sequence are those that are fusing hydrogen into helium in their cores. The radiation and heat from this reaction keep the force of gravity from collapsing the star during this phase of the star's life. This is also the longest phase of a star's life. Our sun will spend about 10 billion years on the main sequence.