Lots of things do NOT happen. Better read an article on star formation and find out what DOES happen.
Gas and radiation flowing away from a newly formed massive star can blow away nearby gas and dust forming star formation pillars. Where nearby gas and dust clouds are compressed, new star formations can be triggered.
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constilation
Protostar
The Universe is always expanding
Not exactly: Star formation is believed to be a slow process, compared to a human lifetime; scientists have, however, seen stars in different phases of their formation.
Gas and radiation flowing away from a newly formed massive star can blow away nearby gas and dust forming star formation pillars. Where nearby gas and dust clouds are compressed, new star formations can be triggered.
As interstellar clouds approach the spiral arm region it helps them to begin the collapsing process and eventually form a star.
Star Wars Movies do not affect the formation of magma.
When the temperature of the core reaches 10 billion degrees kelvin
gravity
New stars are being born all the time; LOTS of them. Also, the star formation process takes a long, long time. So the real question is, when do you consider something to be a "star", as opposed to a "protostar" for example.
A Star
The star that exploded is never going to become a new star, since a lot of the star imploded too, and it's now a super-dense neutron star. If it's really lucky it's a black hole. The part that will create new star formation is the gas and various elements that escape in the explosion, forming nebulae. Over time these clouds of gas find gravitational centres, and eventually materials attract and form new bodies. Everything here on earth was once part of a dying star!
Because it's within this area that most star formation takes place.
Mainly in that gravity is involved in both cases.
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