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What is cosmology? A science that explains about the universe's birth and development.
True or false - Is the universe expanding overtime? True
Does the universe has an edge or a center? No; according to the cosmological principle, the universe has no center nor edge.
The farther the galaxy, ........ The farther we look back in time (distant galaxies are much younger than nearby galaxies)
How can we find the age of the universe with distant galaxies? Lookback time - The amount of time since the light we see from distant objects.
True or false - The universe expanding into something. False
In the beginning of the universe, helium and hydrogen filled the space almost __________ Uniformly
The densest area, with much matter, becomes the "seeds" of galaxies
in the first step of galaxy's formation, the cloud expands along with the universe, however it stopped by __________. Gravity
Gravity contracts clouds into ___________, which helps form galaxies. Protogalactic clouds
Where do protogalactic clouds form? Densest regions of the universe
Created by: U0105006