Doppler red shifts and blue shifts of light from the stars in the galaxies.
The evidence for the existence of dark matter in the universe includes the extra mass of Galactic clusters discovered by Fritz Zwicky, and the spinning galaxies which rotate at the same speed as discovered by Vera Rubin.
yes they do
unknown
Obviously. All galaxies must rotate - otherwise, they would collapse due to their own gravity.
No. If a galaxy were not to rotate, it would soon collapse upon itself, due to its own gravitation.
There aren't really any other names for a galaxy that I can think of, but there are galaxy classifications, such as spiral galaxies (that can rotate either clockwise or counter-clockwise), elliptical galaxies, and irregular galaxies.
The best way to prove employee dishonesty is by keeping a record of evidence that may prove your view. Without evidence or a witness, it may be difficult to prove it.
Falsehood is to deceive as evidence is to prove. Prove is a word that is commonlyÊ used in law courts.
Yes, there is evidence to prove that they lie, even though they deny it.
Edwin Hubble.
The best supporting evidence that the universe is expanding is that galaxies are receding from one another, indicating that the universe is expanding over time. This observation is based on the redshift of galaxies, known as Hubble's Law.
Evidence can prove, or disprove, the case against you.