Stellar Life Cycle
People often mistake thinking stars are real because of one of these reasons.
-They are 'created'
-They burn fuel
-Eventually they run out of fuel and 'die'
The most abundant element in the universe
What is Hydrogen
On the main sequence of a low mass star, this comes after a red giant
What sia planetary nebula
A black hole comes after this stage in the main sequence for high mass stars
What is a supernova
Life must contain these three things
What is
Liquid
Raw materials (atoms)
Energy Source
Another name for this is star nursery
What is a stellar nebula
Most elements were created here
What are stars
The color our sun will be when it expands and the core becomes hotter
These are used to help astronomers determine the age of the universe
What are meteorites
Why it is important to find a magnetic field around a planet that might have life
What is The magnetic field protects the planet from solar wind.
Together, spinning + _____ make fusion
What is gravity
The first atoms created in the big bang
What are hELIUM AND hyDROGEN
This is the last stage in the main sequence of low mass stars
white dwarf
These elements were formed in supernovas. Name at least three
What is Silver, Lead, Copper, and gold
As a nebula begins to shrink it becomes _____
What is denser
Where the fusion of very heavy elements happens
What are Super Giants
This must take place in order for stars to be created
What is hydrogen fusion
A very young star
What is a protostar
NASA is using a tool called NuSTAR to look for more information about these
What are Black Holes
This occurs when the gas at the center of a nebula is so how and dense
When an old star finishes fusing ALL the light elements, this interesting thing happens.
What is a Nova
The fusion of these types of elements happens in super giants.
What are very heavy elements
How much pressure the star has in its core affects the rate of this.
What is hydrogen fusion
This is why the inner planets are dense and rocky and the planets further away are large and gassy
Why Solar wind and heat blew extra hydrogen away from the inner planets
Out of the 2300+ planets that have been discovered, there are 30 small ones in this area that might make life possible.
What is the habitable zone