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2006-09-08 21:21:30 · 6 answers · asked by Anonymous in Science & Mathematics Astronomy & Space

in simple language plz!

2006-09-08 21:28:09 · update #1

6 answers

Protostars (balls of hot gas) become stars (like the sun) when hydrogen gets "smashed together" to form helium. This process is called nuclear fusion.

Basically, hydrogen is the first major "fuel" used by stars during their life cycle.

2006-09-08 21:27:32 · answer #1 · answered by cushdogjr 3 · 0 0

Yeah, when the hydrogen becomes scarce inside the core and the thermal pressure can no longer withstand the pressure of gravity which the outer layers of the sun exercise on the core, then the star transforms into a red giant and then into a white dwarf, or into a pulsar (neutron star), or into a black hole, depending on its initial mass. So as long as hydrogen is present, the star finds itself in balance.

2006-09-09 05:17:54 · answer #2 · answered by weaponspervert 2 · 0 0

Put simply Hydrogen becomes Helium which creates a large ammount of energy to fuel the star/Sun.

2006-09-09 07:53:00 · answer #3 · answered by yao_ming_72487 1 · 0 0

At the core of sun nuclear fusion takes place. Hydrogen is converted into helium. That is what produces the heat and light of sun.
Same in other stars.

2006-09-09 04:24:20 · answer #4 · answered by astrokid 4 · 0 0

its something to do with nuclear fusion. i think what happens is:

- the temperature of the core of the sun is around 15 million Kelvin.

- this is hot enough to allow hydrogen nuclei to fuse and form helium.

- this is then convected to the surface of the sun along with any extra energy formed

- that is how the sun stays hot

so hydrogen keeps the sun hot.

2006-09-09 04:29:38 · answer #5 · answered by FreakGirl 5 · 0 0

When two hydrogen atoms are crammed together by stars' intense gravity, fusion happens, and the result is huge amounts of energy and helium, in a nutshell.

2006-09-09 04:25:35 · answer #6 · answered by DM 2 · 0 0

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