Types Of Galaxies
Past and Future of the Universe
Galaxy Classifications
Measuring the Universe
Wild Card
100
This type of galaxy has arms that appear to spin around the center.
What is a Spiral Galaxy?
100
This is the leading theory and explanation of the origin of the universe.
What is the big bang theory?
100
This is the galaxy classification given to a Galaxy that doesn't have a definite shape.
What is "Irr"?
(Irregular is also ok)
100
All the galaxies observed appear to be moving in this direction.
What is Away From Us?
100
This is our home galaxy.
What is the Milky Way?
200
This type of galaxy has no definite shape.
What is an Irregular Galaxy?
200
This is the radiation that was produced from the big bang, which has since stretched into longer wavelengths.
What is Cosmic Microwave Background Radiation (CMB)?
200
A galaxy classified as an "E0" would have this shape.
What is a ball or sphere?
200
This yet unidentified substance is responsible for approximately 83% of the mass in our universe.
What is Dark Matter?
200
This is the study of origin, nature, and evolution of the Universe.
What is Cosmology?
300
This galaxy type is circular or ovular.
What is an Elliptical Galaxy?
300
This theory states that if the universe's expansion begins to reverse, everything will collapse into a single point.
What is the big crunch?
300
A galaxy classified as an "Sa" would look like this.
What is a "tight" spiral galaxy?
300
This application of the doppler effect can tell us the direction in which a galaxy is moving.
What is Redshift / Blueshift?
300
What event is being shown here, where a larger galaxy absorbs a smaller one
What is galactic cannibalism?
400
These are galaxies that have long, curved arms that extend from a central bar.
What are Barred Spiral Galaxies.
400
This equation helps us to understand how the energy of the initial Big Bang transformed into the first matter in our universe.
What is E=MC^2?
400
A galaxy classified as an "E5" would look like this.
What is a football or oval?
400
This effect causes wavelengths of both light and sound to be stretched or compressed depending on how the object is moving relative to the viewer.
What is the Doppler effect?
400
One of the possible shapes of the universe, where the universe would be finite, have a positive curvature, and loops around.
What is a "spherical" universe?
500
This type of galaxy is shaped like a flat disk but has no arms
What is a lenticular (S0) galaxy?
500
If the universe continues to expand at a constant rate, this is known as the _____________ universe scenario
a. Open
b. Closed
c. Flat
d. Curved
What is (a.) Open?
500
A galaxy classified as an "SBd" would look like this.
What is a "loose" Barred Spiral Galaxy?
500
Since dark matter gives off no electromagnetic radiation, we use this fundamental force instead to detect it.
What is gravity?
500
These galaxies contain the oldest stars in the universe.
What are Elliptical Galaxies?