[/caption] Note: To celebrate the 20th anniversary of the Hubble Space Telescope, for ten days, Universe Today will feature highlights from two year slices of the life of the Hubble, focusing on its achievements as an astronomical observatory. Today’s article looks at the period April 1998 to April 2000. In October 1998, Hubble complemented the … Continue reading "Hubble’s 10th Birthday Gift: Measurement of the Hubble Constant"