Stars!
The state the sun is in.
What is main sequence?
The type of galaxy our galaxy is.
What is a spiral galaxy?
What is the big bang theroy?
The state stars sepnd most of their lives in.
What is main sequence?
Stars gas and dust held together by gravity
What is a galaxy?
A stars life cycle is determined by this
What is mass?
Stars are rarely found here.
The theory that the universe started as a tiny dense point that exploded and created the universe
What is the big bang theroy?
Stars are made of this.
The three types of galaxies.
What are elliptical, irregular, and spiral?
A giant cloud of gas and dust that a star is "born" from
What is nebula?
These types of galaxies can be "barred"
What are spiral galaxies?
The big bang theroy says this is what we are made of.
What are elements of stars?
All stars grow the same up until this point.
These galaxies don't have a definable shape.
What are irregular galaxies?
the final life cycle stage for medium-sized stars like our sun.
What is a white dwarf?
If the milky way were a city, we would live here.
What are suburbs?
Evidence of the Big Bang theory.
What is cosmic background radiation and the relationship between a galaxy's distance from Earth and its speed?
Red giants are red because of this.
What is cooler than when it was in the main sequence state?
These galaxies are oval/round.
What are epilitcial galaxies?
This is how supernovas are made.
What is the star becoming mostly iron, causing the temperature to rise to 100 billion degrees, causing iron atoms to crush together, causing the core to recoil out from the heart of the star?
What is a supermassive black hole?
Discovered the big bang theroy
Who is George Lemaitre
hydrogen gas in the nebula being pulled together, heating up and becoming this.
What is a protostar?
Our galaxy has this many spiral arms.
What is four?