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Stellar evolution - Wikipedia

en.wikipedia.org/wiki/Stellar_evolution

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...

The Death of a Star - How Stars Work | HowStuffWorks

science.howstuffworks.com/star6.htm

... 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 carbon.

How Does a Star Die? - Universe Today

www.universetoday.com/24186/how-does-a-star-die/

Dec 24, 2015 ... Secondly, and more commonly, the core of the star can still be surrounded by some layers of hydrogen, which continue to fuse and cause the ...

What causes a star to die - Answers.com

www.answers.com/Q/What_causes_a_star_to_die

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 rapidly ...

what causes a star to die – Space Zone

spacen14.imascientist.org.uk/2014/11/19/what-causes-a-star-to-die/

Nov 19, 2014 ... Question: what causes a star to die ... If we take a star like our sun then: The star burn hydrogen, by nuclear fusion to helium, in thier cores.

What happens when stars run out of fuel? | Discovery Kids

discoverykids.com/articles/what-happens-when-stars-run-out-of-fuel/

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 causes the death of a star? - Quora

www.quora.com/What-causes-the-death-of-a-star

Death of a star can happen in many ways depending on the type of stars you are talking about. ... 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 ...

What happens to a star when it dies? | Reference.com

www.reference.com/science/happens-star-dies-6e6fc70569de570b

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 ...

ESA - Space for Kids - Our Universe - Star death

www.esa.int/esaKIDSen/SEM976WJD1E_OurUniverse_0.html

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 ...

Life and Death of a Star - Physics - About.com

physics.about.com/od/astronomy/f/LifeDeathStar.htm

Why Do Stars Burn and What Happens When They Die? ... to helium, and to some heavier elements, it takes more and more heat to cause the nuclear fusion.