What happens to a star when it dies for kids?
The upper layers will expand and eject material that will collect around the dying star to form a planetary nebula. Finally, the core will cool into a white dwarf and then eventually into a black dwarf. This entire process will take a few billion years.
What is the life and death of a star?
Stars are born in giant, cold clouds of gas and dust called nebulae. A star is born once it becomes hot enough for fusion reactions to take place at its core. Stars similar to the Sun end their lives as planetary nebulae and leave behind a small hot white dwarf star at the centre of the planetary nebula.
What is the lifestyle of a star?
stars are born in vast clouds of gas and dust. stars spend most of their lives on the main sequence fusing hydrogen gas to helium gas. stars eventually swell up to form a red giant star. stars like the Sun end their lives as planetary nebulae and white dwarfs.
What happens to a star after it dies?
Stars die because they exhaust their nuclear fuel. Once there is no fuel left, the star collapses and the outer layers explode as a ‘supernova’. What’s left over after a supernova explosion is a ‘neutron star’ – the collapsed core of the star – or, if there’s sufficient mass, a black hole.
What is dying star called?
When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova.
What do you call a star that died?
Some types of stars expire with titanic explosions, called supernovae. When a star like the Sun dies, it casts its outer layers into space, leaving its hot, dense core to cool over the eons. A supernova can shine as brightly as an entire galaxy of billions of “normal” stars. …
What is a fact about stars?
Stars are luminous spheres made of plasma – a superheated gas threaded with a magnetic field. They are made mostly of hydrogen, which stars fuse in their cores. Stars are the main components of galaxies, and were among the first objects to form in the early universe.
What are 3 facts about stars?
Top 10 cool things about stars
- Every star you see in the night sky is bigger and brighter than our sun.
- You can’t see millions of stars on a dark night.
- Red hot and cool ice blue – NOT!
- Stars are black bodies.
- There are no green stars.
- Our sun is a green star.
- Our sun is a dwarf star.
- Stars don’t twinkle.