Structure of the Universe

what type of galaxy is this ?

In which galaxy do we live?

what is a celestial body made of gas and gives off light

What do we use to measure distance in space?

what is a system of billions stars with gas and dust held together by gravity ?

what do we call space and all the matter and energy in it

To what object do we compare our universe: galaxies around the surface and a void in the center

a large concentration of groups of galaxies is called a

Which objects orbit planets?

what type of galaxy is this ?

how many types of galaxies are in the universe?

How do we categorize galaxies?

What is the name of your science teacher?

what type of galaxy is this ?

What gives off energy in the form of LIGHT, RADIATION, HEAT and WIND

Earth is special to us! What is one thing that makes it unique?

What process takes place in the core of a star to produce energy?

Stars are made up of mostly what two elements

What is an area in the universe where very little matter exists?

which type of galaxy is the milky way galaxy ?