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They start as stellar nebulae - a cloud of molecular gases and dust. This collapsed, either under the force of its own gravity or helped by an external force such as a passing star or shock waves from a supernova explosion. The dust and gas began to collect into denser regions and as the denser regions pulled in more and more matter, conservation of momentum caused it to begin rotating, while increasing pressure caused it to heat up. Most of the material ended up in a ball at the centre which would become the star. The rest of the matter flattened out into disk that circled around it and could form planets.
After a time (100,000 years for our sun), the temperature and pressure at the core was high enough for thermonuclear fusion to begin. That is, hydrogen began to fuse into helium.
What else can I help you with?
Have all of the stars you see in the sky all ready exploded?
No, not all stars we see in the sky have already exploded. Stars that are visible to us are typically within our own Milky Way galaxy and are at various stages of their life cycles. Some may have already exploded in supernova events, while others are still actively shining.
Why are life cycles important to living things?
if they do not have a life cycle they all die in the mean time
Are alternation of generations haploid and diploid all types of sexual life cycles?
True ...
When the stars begin to huddle the earth soon to become a puddle?
Yes, we get in a muddle and all have a cuddle.
All-stars begin their lives as a part of what?
All-stars begin their lives as a part of a molecular cloud in space. These clouds contain gas and dust that eventually collapse and form stars through the process of nuclear fusion. The intense pressure and heat at the core of the collapsing cloud triggers the fusion of hydrogen atoms into helium, leading to the birth of a new star.
Where do all-stars begin there life?
Stars begin their lives as clouds of gas and space dust.
Where do all-stars begin their life cycle?
In the nebula!
Do all-stars have the same sunspot cycles?
Not necessarily
Nearly 90 percent of all-stars are at what point in their life cycles?
Nearly 90 percent of all-stars are in the main-sequence phase of their life cycle. This is when they are fusing hydrogen into helium in their cores, a stable phase that can last for billions of years.
what is the name of all the cycles in science?
Life! :)
All-stars begin as a?
As a ball of fire
How do all-stars begin their lives as parts of?
nebulas =-)
How do all stars begin their lives part of?
nebulas =-)
Have all of the stars you see in the sky all ready exploded?
No, not all stars we see in the sky have already exploded. Stars that are visible to us are typically within our own Milky Way galaxy and are at various stages of their life cycles. Some may have already exploded in supernova events, while others are still actively shining.
Which are the five cycles?
The: Rock Cycle Water Cycle Nitrogen Cycle Oxygen Cycle Carbon Cycle
How might the death of all the producers in an ecosystem affect the carbon oxygen and nitrogen cycles?
All life will completely stop as well as the cycles that these used.
Why are life cycles important to living things?
if they do not have a life cycle they all die in the mean time
