What was the first theory on the origin of the Universe?

What did the Steady State Theory suggest?

How is light from distant galaxies shifted?

What are absorption spectra?

What do scientists do with absorption spectra?

What does each element produce on an absorption spectra?

What is the name of light from distant galaxies being more red?

What does red-shift show?

What does red-shift of most galaxies show us?

If light from a galaxy is red shifted, what is happening?

How can we measure red-shift?

Two galaxies are moving away from Earth, with galaxy A moving more quickly than B. What happens to their light?

More distance galaxies have a greater red-shift than nearer ones. What does this show?

As more distant galaxies are moving faster than nearer ones, what does this suggest?

What is the blue-shift?

What does the blue-shift show?

What is CMBR?

What does CMBR stand for?

What is CMBR evidence for?

Why is CMBR evidence for the Big Bang Theory?

Which theory is believed about the origin of the Universe at the moment?

What is the current theory on the origin on the Universe?

What does the Big Bang Theory state?

What do we still not understand about the universe?

Give a piece of evidence for both the Steady State Theory and the Big Bang Theory.