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Gravity and heat.
Yes. Stars form within a nebula.
A star forms a nebula when it runs out of fuel. The star either becomes a red giant or a supergiant, then the star would be blown off into space either by expansion or explosion. The outer layers, which was released into space, would become a nebula, or sometimes a part of a larger nebula.
A nebula is a cloud of substances and gases that can form into a star. A star is a ball of hydrogen and helium with trace amounts of other gases. A supernova is the death of a star.
A nebula is the initial stage in the lifecycle of a star, a vast cloud of gas and dust in space where stars are born. Gravity causes regions within the nebula to contract and form protostars, which eventually grow into full-fledged stars. Nebulas are the birthplaces of stars in the cosmos.
Gravity and heat.
Any star can form from a nebula. all it needs is some force to make it collapse, like a nearby supernova or gravitational pull.
A nebula may condense and ignite to become a star, conversely a star may explode and form a nebula.
Yes. Stars form within a nebula.
No. A protostar forms when gravity causes dense parts of a nebula to collapse. Since gravity is an attractive force it does not make any sense that it would cause something to expand.
protostar or nebula
A nebula.
Yes, Nebula's die. They die when they get to close to Black Holes.
A star forms a nebula when it runs out of fuel. The star either becomes a red giant or a supergiant, then the star would be blown off into space either by expansion or explosion. The outer layers, which was released into space, would become a nebula, or sometimes a part of a larger nebula.
A nebula is a cloud of substances and gases that can form into a star. A star is a ball of hydrogen and helium with trace amounts of other gases. A supernova is the death of a star.
A nebula is the initial stage in the lifecycle of a star, a vast cloud of gas and dust in space where stars are born. Gravity causes regions within the nebula to contract and form protostars, which eventually grow into full-fledged stars. Nebulas are the birthplaces of stars in the cosmos.
The gases come together due to gravity and form a nebula which further form a star. it alo come sfrom