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Stars play a variety of roles. First and foremost, the sun is a star. It provides the heat and light necessary for life of Earth. Stars also create most of the elements we find. Before stars started forming all matter in the universe consisted of hydrogen, helium, and trace amounts of lithium. All other elements have since been made in the thermonuclear furnaces of stars.

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Why mass is so important in determining the evolution of a star?

Hydrogen, helium, and carbon fuel are found in more massive stars. The diameter of more massive stars is bigger. Helium is found in greater abundance in more massive stars. The weight of more massive stars is greater.


Why is hydrogen and helium found in all stars?

These elements are found in are very important in each of the five stars. all five stars because the elements


Why is the sun most important in the universe?

Our Sun is only important TO US. Other than the fact that we live here on Earth and are pretty much dependent on it, there isn't anything special about the Sun. It's a little larger than the average, but not spectacularly so. (Astronomers used to think that our Sun was in the middle of the range of stars, until we started discovering so many tiny and dim stars in the Galaxy.)


How do some stars become shooting stars?

Shooting stars are not stars. They are bits of dirt and dust that burn up in our atmosphere, briefly making them look like stars. Most of that is debris is from comets or others bits of dirt in space, but they are not stars and were not stars. So stars do not become shooting stars.


What is the most important factor in determining a stars life cycle?

The most important factor in determining a star's life cycle is its mass. The mass of a star determines its size, temperature, and how it will evolve over time. More massive stars have shorter lives and end in a violent supernova explosion, while less massive stars like the Sun will eventually become a white dwarf.