Galaxies
The Milky Way galaxy is this type of galaxy
Spiral Galaxy
A dwarf planet that used to be considered a Planet
Pluto
Makes up 90% of space but is completely unobservable
Dark Matter
Estimated time as to when the big bang occured
13-14 billion years ago
The simplest molecule
Hydrogen
Galaxy that contains little or no gas or dust
Elliptical Galaxy
The only planet with a reverse rotation
Venus
About how many stars are in our galaxy?
Around 200 billion
According to the Big Bang Theory, The universe is constantly ________
Expanding
The planet with the fastest rotation
Jupiter
Name for a large Cluster of stars
Super cluster
Planet with the largest abundance of oxygen
Earth
The force that keeps galaxies and stars moving
Dark Energy
Eventually when the universe cooled down, what small structure started forming?
Atoms
The process in which stars release energy
Nuclear Fusion
A galaxy with an odd non-symmetrical shape
Irregular galaxy
Planet with the most moons?
Jupiter
Our galaxy is a member of __________
"The Local group"
What is the effect we know that shows that the universe is expanding
Doppler Effect
The name of the scientist who organized dozens of constellations
Ptolemy
Area in between galaxies
Void
The second smallest planet
Mars
The name of the galaxy that will eventually merge with ours
Andromeda
Name of the structures that existed before the universe cooled down
Quarks
How do you spell my last name?
D-r-o-g-o-m-i-r-e-c-k-i