Black Holes/Neutron Stars
Rapidly rotating neutron stars
Pulsars
Holds galaxies together
Dark Matter
Used for galaxy classification
Hubble Sequence
The universe is ______
isotropic
The closest quasar is approximately _____ lightyears away
2.3 billion
What is the surface of a black hole
Event Horizon
Results in galaxies being pushed apart
Dark Energy
Type of galaxy that forms a rotating disk
Spiral Galaxies
There is a ______ relation between distance and redshift
linear
True or False :
Quasars are the most powerful and active galaxies in the universe
True
To become a black hole, a star must have a mass of ____ times the sun or more.
25
Dark Matter makes up around ____ % of the cosmos
27
Central spherical region of our galaxies
Bulge
True or False :
We live in a special time and place in the universe
False
The Milky Way is a _____ galaxy
spiral
What would happen if we entered a black hole ?
Spaghettification
Dark Matter was originally discovered by .....
Fritz Zwingt
Galaxies whose shapes range from circles to ovals
Elliptical
What does CMB stand for ?
Cosmic Microwave Background
The milky way is around _____ years old
13.61 billion
The escape velocity of a neutron star is about ______ km per second
231,000
The existence of Dark Matter was confirmed by .....
Vera Rubin
Galaxies with bulge and disk like spiral galaxies but no arms
Lenticular Galaxies
Who proposed the idea that the expansion of the universe began with the explosion of a single particle
George Lemaitre
The Milky Way has around _____ stars
100 billion