Categories Blog Post author By iamdefinitory Post date July 6, 2025 No Comments on MAIN SEQUENCE: The phase in a star’s life when it is fusing hydrogen into helium in its core. ← MAIN SEQUENCE STARS → Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.