Galaxy Types
This galaxy type looks like a pinwheel
Spiral
How many years ago did the universe begin?
13.7 billion
Patterns made from stars observed by early people
Constellations
In the beginning of the universe, all fundamental forces started as...
One combined force, and as space expanded they split off
Colour of the hottest types of stars
Blue
This galaxy can take many shapes. Very ambiguous
Irregular
This theory says the universe started from?
A single, hot, dense point
Constellations are often named after...
mythological figures, animals, or objects
The strongest force, binding quarks together to form protons and neutrons, and holding the atomic nucleus together against electromagnetic repulsion.
Strong Nuclear Force
What two elements are stars primarily composed of?
Hydrogen and Helium
This galaxy is usually shaped like a circle
Elliptical
According to the theory, what is the universe currently doing?
Expanding outwards
These astrological signs are constellations
Zodiac signs
Responsible for certain types of radioactive decay and neutrino interactions, operating over very short distances.
Weak nuclear force
This is the stage of a star's life directly after the protostar stage; can either be low-mass or high-mass.
Main Sequence
This galaxy has a central bar of stars in the center
The big bang led to the creation of...
Space, time, matter, and energy, stars, galaxies, etc.
The Big Dipper and Little Dipper are also known as...
Acts on electrically charged particles, responsible for light, electricity, magnetism, and holding electrons in atoms.
Electromagnetic
The two classes for star classification are the...
Main Spectral Class (Temp/Colour) and Luminosity Class (Size)
This galaxy is like a spiral galaxy but has an Active Galactic Nucleus, a highly energetic region powered by a supermassive black hole
Seyfert Galaxy
The theory is commonly thought of as an explosion in space, much like a supernova, but it is really...
The expansion of space itself.
A band of 3, almost evenly spaced stars is an indicator you are looking at the constellation of who?
Orion the Hunter
The weakest force but with infinite range. Controls the orbits of planets and galaxies
gravity
This diagram is used to plot and organise types of stars
Hertzsprung-Russell Diagram