what are stars made up of??

Answer 1

Stars start out as huge masses of mostly hydrogen and some helium. The center of the star is so hot and at such an enormous pressure that the hydrogen can be converted to helium by nuclear fusion. When most of the hydrogen is 'burned' up the star cools and collapses increasing pressure and temperature at the center. This permits fusion to create the lighter elements such as carbon and oxygen while releasing huge quantities of energy to keep the star alive. When the 'easy' fuel is consumed the star cools and collapses to the center where the extreme pressure and temperature will created the heavier elements like lead and uranium by fusing lighter elements, releasing so much energy the star will explode (implosion followed by explosion) in a supernova. The air we breathe and the minerals within our bodies were created by fusion within dying stars and supernovas that cast the materials throughout our galaxy where it was used to create new stars (our sun) and its planets. All that and stardust still falls from the sky to become part of the veggies we eat. You truly are a child of the STARS!

Answer 2

Stars are primarily made up of hydrogen and helium gas. The mass of the stars makes the central regions of the star very hot because of all that gas bearing down on the central core. In the core, the weight of all the gas creates unbelieveable heat. The pressure and heat combine to create a kind of nuclear fusion of Hydrogen Gas into helium Gas which gives off light, radiation, and lots of heat. Gases near the core have become molten and within the core may be a special kind of molten metallic form of gas that we have never seen here on Earth.

Answer 3

stars -
gaseous burning rocks

generates energy by thermonuclear reactions

a gaseous mass in space

a celestial body usually visible as a small bright point of light in the night sky



that is all i got

Answer 4

Billions and Billions of tiny specters of light and gases they come together to form small planets. Some time they fall to earth they become even smaller by the time they hit earth
there an asteroid.

Answer 5

Our sun is a star and it's mostly hydrogen (98%).

Answer 6

it is made of mostly helium and hydrogen...and its core is aprox 15000 degree

Answer 7

All kinds of elements in the atmosphere.

Answer 8

mostly hydrogen and helium

Answer 9

i hear it was gas...something like that