Web Results

Stellar evolution - Wikipedia


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


... 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.

What causes a star to die - Answers.com


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 happens when stars run out of fuel? | Discovery Kids


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  ...

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


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.

What causes the death of a star? - Quora


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 ...

Stellar Death - University of Oregon


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 ...

Stars | Science Mission Directorate


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  ...

Q: Why does iron kill stars? | Ask a Mathematician / Ask a Physicist


Nov 22, 2013 ... Without fuel, the rest of the star is free to collapse the core without ... Long story short: iron doesn't kill stars, but right before a (large) star dies, it is full of ..... Q: Why do nuclear weapons cause EMPs (electromagnetic pulses)?

Red Giant Stars: Facts, Definition & the Future of the Sun - Space.com


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.

More Info

How Does a Star Die? - Universe Today


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 star to expand, ...

what causes a star to die – Space Zone


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 ...

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


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 ...