Formation of stars
As ____ keeps working, the mass grows and the material collapses in on itself and contracts.
What is gravity
Start small and exist that way for most of their life as a dim, cool red ___
What is a dwarf star
A galaxy that does not have any regular shape.
What is an irregular galaxy.
The hydrogen bomb uses what process(es) to fuel the reaction
What is Fission and Fusion
Stars at the very top of the HR diagram that are WAY too bright for their temperature
What are Super Giants
The early phase of a star is called a ___
What is protostar
An intermediate mass stars (the Sun) only last about ____ billon years
What is 10 to 15
A galaxy is a collection of stars, ___ , and dust held together by gravity.
What is gas
A particle with no charge that carries a large amount of energy.
What is a neutrino.
Which color of stars as the highest temperature?
What is Blue?
A ___ is a object in space made up of hot gases.
What is a star
Dwarf stars eventually change to hot dim ___ dwarfs and quietly die out.
What is white
When viewed from above, looks like a pinwheel, with many long "arms" spiraling out from the center core.
What is a spiral galaxy.
The process of splitting an atom into two smaller atoms is called.
What is Fission.
A type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude
Cepheid star
A star is an object in space made up of hot gases with a core that is like a ___ reactor.
What is Thermonuclear fusion
Intermediate stars expand into a ____.
What is a red giant
Astronomers now believe the whole universe contains at least ___ billion galaxies.
What is 125.
The process of smashing two smaller atoms into one larger atom is called
Fusion
A blue shift indicates.
What is the object moving toward you..
If a protostar collects enough dust and ___ , it's core will eventually reach 10 000 000 degrees Celsius.
What is gas
When a high mass stars collapses in on itself causing mass explosion
What is a supernova
A galaxy that ranges in shape from a perfect sphere to a stretched out ellipse.
What is an elliptical galaxy.
The sun fuses what elements into what?
What is Hydrogen into Helium
A red shift indicates.
What is the object moving way from you..