galaxy articles
What type of galaxy contains mostly old stars?
How did Edwin Hubble measure the distance of the Andromeda Galaxy?
What type of galaxy has old red stars?
Why is the sky dark at night with all these stars and galaxies?
How many clusters are there in the universe?
What did Edwin Hubble conclude about the universe?
Is our galaxy spiral elliptical or irregular?
Why are star clusters important?
What is a cluster in cosmology?
What did Edwin Hubble notice about the movement of galaxies?
What did Hubble notice about the spectrum?
Which two discoveries are attributed to Edwin Hubble?
What is the force that clumps galaxies together?
What is the density wave theory for spiral arm formation?
What causes the waves to glow in a spiral galaxy?
What keeps the stars in a galaxy together?
What holds the stars in the Milky Way together?
What did Milky Way used to be called?
What was the Milky Way originally called?
What supercluster is Earth in?
Where are the oldest stars in the galaxy mostly found?
What is the Sagittarius Arm in the solar system?
Are we in the Sagittarius Arm?
Does our solar system come from Sagittarius?
Page 1 of 5Next