Which means gravity with the star's mass (which pulls the gases inward) is well balanced by the outward strain of the heat and light-weight—the radiation strain—established by the nuclear fusion happening during the Main. Could our Sun stop its lifetime looking such as the planetary nebula NGC 678? Astronomers https://caidenmmlhd.blogdigy.com/the-smart-trick-of-hotel-penang-that-nobody-is-discussing-58194342