Structure of the Milky Way
Big Bang
Galaxy Classification
That’s weird
Origin and History of the Milky Way
100
Spherical cloud of stars and star clusters that contain almost no gas or dust
What is the halo?
100
This is how long ago the Big Bang occurred.
What is 13.8 billion years ago?
100
Created the tuning fork classification system of galaxies.
Who is Edwin Hubble?
100
When you look at galaxies farther away from Earth, you are also looking farther back in this.
What is Time?
(Light from distant galaxies must travel for millions or billions of years before we are able to detect it. So, when we look at images of galaxies far away, we are actually seeing what these galaxies looked like long ago. )
100
Process in stars that fuses hydrogen and helium to make heavier atoms
What is Nucleosynthesis?
200
Slightly flattened cloud of billions of stars about 6 kpc in diameter
What is the Central Bulge?
200
This is what the universe will probably do forever.
What is Continuously Expand?
And this expansion rate will likely continue to get faster and faster.
200
Most common galaxies
What are elliptical galaxies?
200
Large masses (like stars) do this to space-time.
What is Curve/Warp It?
200
These events provide heavier elements in interstellar medium.
Planetary Nebula and Supernova Explosions
300
Component that contains the Halo and Central Bulge
What is the Spherical Component?
300
Do the majority of stars and galaxies exhibit red shift or blue shift? Why?
The majority of stars and galaxies exhibit red shift, because they are moving away from Earth.
300
This color of stars have lots of gas and dust and are in the disks of spiral galaxies.
What is blue?
300
This is how time moves near a massive object.
What is Slowly?
300
Population I stars are young and metal _______.
What is metal?
400
Component home to giant molecular clouds where stars form
What is the disk component?
400
This discover, made by Edwin Hubble, led to the development Big Bang Theory.
What is The Universe is Expanding?
400
Chaotic mix of gas, dust, and stars.
What are irregular galaxies?
400
This is the name of the "invisible" stuff that makes up 90% of the universe.
What is Dark Matter?
400
Population II stars formed when the galaxy was _____.
What is young?
500
These stars have highly elongated orbits tipped steeply to the plane of the disk.
What are halo stars and globular clusters?
500
Give me the first name of each Big Bang character seen in this picture.
Bernadette, Howard, Raj, Penny, Sheldon, Leonard, and Amy
500
These galaxies have a disk and spiral arms.
What are spiral galaxies?
500
This is an incorrect assumption that Oblers' Paradox makes.
The universe is static and ageless.
500
Unpopular theory that the galaxy formed from a single large cloud of turbulent gas that contracted.
What is monolithic collapse/ top down theory?