Stellar evolution is the process by which a star changes during its lifetime.
Depending on the ... This process causes the star to gradually grow in size,
passing through the subgiant stage until it...
... looking at? Learn what stars are and how they live and die! ... At some point
after this, the core will become hot enough to cause the helium to fuse into
an average star spends 90 percent of its life as a hydrogen-burning, main-
sequencestar. Once the hydrogen fuel in the star's core is depleted, it evolves
Nov 19, 2014 ... Its basically when the star runs out of fuel to keep it going. If we take a star like
our sun then: The star burn hydrogen, by nuclear fusion to ...
Aug 21, 2013 ... A red giant star is a dying star in the last stages of stellar evolution. ... The energy
produced by the helium fusion causes the star to expand outward to many times
its ... How the Sun Will Die: And What Happens to Earth.
Most stars take millions of years to die. When a star like the Sun has burned all of
its hydrogen fuel, it expands to become a red giant. This may be millions of ...
Apr 15, 2016 ... These variations cause the star to pulsate and throw off its outer layers, ... Main
sequence stars over eight solar masses are destined to die in a ...
Stars with mass less than or equal to the mass of our Sun usually "die" a peaceful
death. By peaceful I mean that when they have burned all of their hydrogen ...
The sudden stoppage of energy generation causes the core to collapse and the
outer layers of the star to fall onto the core. The infalling layers collapse so fast ...
A "falling star" or a "shooting star" has nothing at all to do with a star! These
amazing streaks of light you can sometimes see in the night sky are caused by