Galaxies are moving away from each
other in a constantly expanding universe
Hubble
Edwin Hubble, an American astronomer, made this discovery in 1929.
Astronomer.
The astronomer studied distant galaxies using a powerful telescope.
Galaxies are moving away from each other in a constantly expanding universe.
Astronomer.
The Hubble telescope did not discover that there is a red shift in the spectra of Galaxies. The telescope is named after the American astronomer, Edwin Hubble, who discovered the phenomenon in the 1920s.
Edwin Hubble
Shapley is the astronomer that argued that the milky way is huge and other galaxies are merely small nearby companions.
Edwin Hubble.
explorer? you probably mean astronomer.
An astronomer is a scientist who studies celestial bodies (planets, stars, black holes, moons, nebulae, galaxies).