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Stars form when dense portions of interstellar medium condense due to gravity.
The collapsing cloud of dust and gas forms a large, hot core that develops into a main sequence star. As these stars decay, they expand, and their later fate depends on the star's original mass. More >>

Stellar evolution - Wikipedia

en.wikipedia.org/wiki/Stellar_evolution

... depiction of the life cycle of a Sun-like star, starting as a main-sequence star at lower left then expanding through the subgiant and giant phases, until its outer envelope is expelled to form ...

The Life Cycle Of A Star

www.telescope.org/pparc/res8.html

THE LIFE CYCLE OF A STAR. Outlined below are the many steps involved in a stars evolution, from its formation in a nebula, to its death as a white dwarf or ...

Life Cycle of a Star | National Schools' Observatory

www.schoolsobservatory.org.uk/astro/stars/lifecycle

Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine ...

The Life of a Star

www.astro.keele.ac.uk/workx/starlife/StarpageS_26M.html

This page (as the title says) is all about the life of a star. It will show all the stages that a small star, and a massive star have to go through during their lifetime.

www.ask.com/youtube?q=Life Cycle of a Star&v=PM9CQDlQI0A
Nov 1, 2012 ... Explains how we believe stars are born, live and die and the different ends to different sized stars. Learn even more on Teaching Astronomy on ...

Background: Life Cycles of Stars - Imagine the Universe! - NASA

imagine.gsfc.nasa.gov/educators/lessons/xray_spectra/background-lifecycles.html

May 7, 2015 ... A star's life cycle is determined by its mass. The larger its mass, the shorter its life cycle. A star's mass is determined by the amount of matter that ...

The Life Cycles of Stars - Imagine the Universe! - NASA

imagine.gsfc.nasa.gov/educators/lifecycles/Imagine2.pdf

The Life Cycles of Stars. I. Star Birth and Life. Imagine an enormous cloud of gas and dust many light-years across. Gravity, as it always does, tries to pull the ...

The Life Cycles of Stars - Imagine the Universe! - NASA

imagine.gsfc.nasa.gov/educators/lifecycles/starchild5.pdf

The Life Cycles of Stars. A star's life cycle is determined by its mass. The larger the mass, the shorter the life cycle. A star's mass is determined by the amount of ...

What is the life cycle of a star? (Intermediate) - Curious About ...

curious.astro.cornell.edu/physics/83-the-universe/stars-and-star-clusters/star-formation-and-molecular-clouds/398-what-is-the-life-cycle-of-a-star-intermediate

Jun 27, 2015 ... As the star goes through its life cycle, it moves along the HR diagram from one place to another. The page I sent you shows tracks for stars and ...