Edwin Hubble was responsible for the concept of the universe expanding.
Yes, the whole universe is expanding rapidly and so are the galaxies within it.
It means that the light from galaxies is losing energy. The only reasonable explanation for this is the cosmoligical redshift - that is, that the Universe is expanding.
because the universe is expanding.
Other galaxies are moving away because the universe is expanding, but we are not at the centre of the universe.
Edwin Hubble
Edwin Hubble.
Steven hawking
The universe is expanding.
Edward Hubble
Edwin Hubble
Eddie Hubble
expanding