Folks have, for a protracted, laid on their backs and pointed on the starry sky, questioning how far these twinkling luminaries are. Measuring cosmic distances has been a degree of scientific curiosity for equally lengthy.
The Hubble fixed (H0) has been on the heart of this quest. Named after Edwin Hubble who found that distant galaxies transfer away from us sooner than nearer ones, H0 represents the velocity at which a galaxy would transfer away from us if it have been 1 megaparsec distant.