out of which materials do stars begin to form?

Answer 1

Stars need hydrogen, period. The fancy name for what happens in the star is thermonuclear fusion, which just means that two hydrogen atoms are fused to make helium, and in the process release a lot of light and energy, allowing the star to shine. So, you know how when you pump up a bike tire, the pump gets hot? That's because you're compressing a fluid (in the case of stars it's hydrogen) and when you compress a fluid the fluid heats up (in this case it's the air heating up the pump). This heating up has to reach 25 million degrees before a star will shine, and the "pump" is gravity in this case. so a star has to have a lot of hydrogen from which to form if it's going to become hot enough to go into thermonuclear fusion.

Answer 2

Every star begins by fusion the simplest most abundant element in the universe: hydrogen. Hydrogen gas in nebulae eventually condense and compact enough to begin the fusion process. This can occur slowly due to gravity causing the gas to coalesce, or by and energy wave ripple cause by some distant astronomical event like a nova or super nova explosion. Nebulae have been called "star nurseries". Just like the Orion Nebula--The belt of the constellation is not made up of 3 stars, but 2 stars and a nebula.

Answer 3

Stars form in dense clouds of gas and dust such as this one, called the Rho Ophiuchi dark cloud. These clouds are so dense that visible light produced by the stars is blocked by the dust. Astronomers use infrared telescopes in space to detect emissions from new stars.

Answer 4

Like 70% hydrogen, 28% helium, and 2% of whatever else happens to be floating around.

Answer 5

Hydogen, Nitrogen, Nitrous-oxide and Carbon dioxide.

Answer 6

Literally out of anything that's lying around. whatever gas and dust are just hanging out. Hydrogen, oxygen, nitrogen, etc...

Answer 7

Cosmic dust.
Time and much compression does the rest.