The Universe & More
What is the name of the event that started the Universe?
The Big Bang
What is our galaxy is called?
Milky Way Galaxy
What process allows stars to create their own energy?
nuclear fusion
How old is the Universe?
13 billion years
What true fact about about galaxies helped scientists understand that the universe is expanding?
Galaxies are moving away from us
Galaxies are red-shifted
This is the dimmest and coolest star on the HR Diagram (Star Characteristics Chart).
Proxima Centauri
This type of energy has the shortest wavelength.
gamma rays
True or False:
The Milky Way Galaxy is older than our Solar System.
False
What is another word for a star's "luminosity"?
Its "brightness"