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Stellar evolution

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 ...

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 ...
www.ask.com/youtube?q=Life Cycle of a Star&v=Fp3LDZaT2UM
Jun 4, 2013 ... This video describes the life cycles of an average star like the Sun and a more massive star. This has appeared a number of times as a 6 mark ...

Lifecycle of a Star | NASA

www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Lifecycle_of_a_Star.html

Jul 1, 2016 ... This NASA video segment describes the life cycle of a star. Viewers learn about the opposing forces on a star and the ways in which these ...

WMAP- Life and Death of Stars

map.gsfc.nasa.gov/universe/rel_stars.html

Apr 16, 2010 ... Once the star contracts enough that its central core can burn ... than Sun exhaust the helium in the core, the nuclear burning cycle continues.

BBC - GCSE Bitesize: Life cycles of stars

www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/stars/lifecyclestarsrev2.shtml

A secondary school revision resource for AQA GCSE Additional Science about the formation of a star, life cycles of stars and fusion in stars.

Life Cycle of Stars - Universe Today

www.universetoday.com/24629/life-cycle-of-stars/

Dec 24, 2015 ... Let's take a look at the life cycle of stars. Molecular Clouds Stars start out as vast clouds of cold molecular gas. The gas cloud could be floating ...

Main Sequence Stars: Definition & Life Cycle - Space.com

www.space.com/22437-main-sequence-stars.html

May 5, 2015 ... Main sequence stars are stars that are fusing hydrogen atoms to form helium atoms in their cores. Most of the stars in the universe are main ...

Answer
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 >>
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Life Cycle of a Star | National Schools' Observatory

www.schoolsobservatory.org.uk

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 ...

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

imagine.gsfc.nasa.gov

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 ...

Star Life Cycle - Zoom Astronomy - Enchanted Learning

www.enchantedlearning.com

THE LIFE CYCLE OF STARS. Stars are born in nebulae. Huge clouds of dust and gas collapse under gravitational forces, forming protostars. These young stars ...