Home > Astronomy > Expansion of the Universe

If astronomers can not see the end of the universe, how do they know it is still expanding?

Answer 1

What astronomers discuss is observable or our universe. It is a good convention not to prefix the definite article #the# to universe. Yet, we can overlook all this.

A MON AVIS: The statement that we cannot see the end is truth. The holistic entirety of the universe, as well as the holistic entirety of the synonyms nature and god, are yet to be realized.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Alexander Acosta

Redshift in their light spectra confirms the expansion of the universe, which is supported by observations of far-off galaxies moving away from us.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.