Stellar evolution is the process by which a star changes over the course of time.
Depending on ... 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
How do stars die? ... This is what happens when a normal-sized star dies. ... The
star's gravity causes it to collapse, and then it explodes into a supernova. What's
What happens when a star dies? ... in a star gets converted to helium, and to
some heavier elements, it takes more and more heat to cause the nuclear fusion.
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 ...
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 titanic explosion
This causes them to be bright in the sky and burn hot. Eventually, stars run out of
hydrogen and the star begins to die. When this happens, the helium begins ...
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
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.