Because they begin to run out of fuel
Because they expand, due to modecules in the air, most red gaints start out as tiny stars known as "white dwarfs" which, over millions of years, expand to form a red giant. Eventually after billions of years the Red Giant collapses and turns into a supernova, which can then form into a Black hole I hope this Answered your question! =)
if by combine you mean two stars crash into each other, the average sized star would melt into the red giant, if by combine you mean place the average inside the red giant, the averagesize will just expand and be absorbed
All Stars will become a red giant , and there are also new Stars are borning.
when Dwarf Stars run out of hydrogen they form Red Giant stars, then from that they become White dwarf stars when the outer layers shed, forming a planetary nebula.when giant stars or supergiant stars run out of hydrogen they form red supergiant stars
big stars
Because they expand, due to modecules in the air, most red gaints start out as tiny stars known as "white dwarfs" which, over millions of years, expand to form a red giant. Eventually after billions of years the Red Giant collapses and turns into a supernova, which can then form into a Black hole I hope this Answered your question! =)
When compared to the other stars, the Red Giant Star are very minute. There are other stars that are very large by far as compared to the Red giant stars.
It is never referred to as a red giant, but it might be because it has a giant red spot on it which is actually a large storm on the planet. But red giants are stars which have used up all the hydrogen so they start to expand and swallow up all the planets around it. )
if by combine you mean two stars crash into each other, the average sized star would melt into the red giant, if by combine you mean place the average inside the red giant, the averagesize will just expand and be absorbed
All Stars will become a red giant , and there are also new Stars are borning.
when Dwarf Stars run out of hydrogen they form Red Giant stars, then from that they become White dwarf stars when the outer layers shed, forming a planetary nebula.when giant stars or supergiant stars run out of hydrogen they form red supergiant stars
big stars
Smaller stars like our own expand into a red giant and then eventually collapse into a white dwarf, the more larger stars like a bright giant star expand into a hyper giant or a super giant. Super giant stars can go supernova and collapse into a neutron star, a white dwarf, or a black hole. The hyper giant stars go hypernova and make a gamma ray that eventually ends into a black hole.
the super giant stars are red
Big stars
Stars expand in size to become red giants, when they start running low on Hydrogen fuel.
A red giant star is a dying star that is in the last stages of stellar evolution. Red giant stars are red in color.