7 Questions
What did Edwin Hubble discover about the universe?
It is actually expanding.
What evidence supports the Big Bang Theory?
The observation of cosmic background radiation.
What do stars primarily contain?
Hydrogen and helium.
Who was Edwin Hubble?
An astronomer.
What did Hubble observe about galaxies' distances?
The farther a galaxy is, the faster it moves away from us.
What does Hubble's Law state?
Objects further from each other move faster away.
What did Hubble use to measure distances to galaxies?
A series of indicators combined with observing spectra of faint galaxies.
Test your knowledge on the red shift of light and the Doppler Effect. Learn how wavelengths are affected when emitted by objects moving towards or away from an observer, and understand how the sound of a moving source is perceived differently due to the Doppler Effect.
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