Definitions for "Hubble"
Edwin Powell Hubble (1889-1953) American astronomer known for seminal work in modern cosmology.
a unit of distance sometimes used in astronomy. The hubble is a gigantic unit, equal to 109 light years. This is 9.4605 x 1021 kilometers (9.4605 yottameters, if you please), 5.8785 sextillion miles (U.S.), 63.240 x 1012 astronomical units, or 306.595 mega parsecs. In practice, most astronomers use the megaparsec for measuring such stupendous distances. The unit honors the American astronomer Edwin Hubble (1889-1953), who discovered the expansion of the Universe later explained by the Big Bang theory.
United States astronomer who discovered that (as the universe expands) the speed with which nebulae recede increases with their distance (1889-1953)
Hubble is a lunar crater that lies very near the east-northeastern limb of the Moon. At this location it is viewed almost from the side from Earth, and the visibility of this feature is affected by libration. It lies to the north of the Mare Marginis and northeast of the Cannon crater.