Nasa esa logos
Banner Timeline
A chronology of the Hubble Space Telescope Illustrates the mission's history from conception through its 25 years of ground-breaking observations and discoveries.
Historical Context
Voyager 1's "Pale Blue Dot"
Voyager 1's "Pale Blue Dot"
February 14, 1990

The "Pale Blue Dot" is a part of the first-ever "portrait" of the solar system taken by the Voyager 1 space probe from more than 4 billion miles from Earth....

View more

NASA's Visible Earth
Mission Event
Hubble Space Telescope launch
Hubble Space Telescope launch
April 24, 1990

Hubble is shipped from Lockheed in California to the Kennedy Space Center in Florida in October,1989. There, it is launched into Earth orbit during the...

View more

NASA Space Shuttle Discovery Mission STS-31: Hubble Space Telescope Deploy
Milestone Release
First image taken by Hubble's Wide Field Planetary Camera
First image taken by Hubble's Wide Field Planetary Camera
Release date: May 20, 1990

(Right): First image taken with NASA's Hubble Space Telescope's Wide Field/Planetary Camera; (Left): Ground-based picture of the same region of the sky,...

View more

HubbleSite press release
Mission Event
Spherical aberration is discovered in the primary mirror
Spherical aberration is discovered in the primary mirror
June 25, 1990

After analyzing Hubble’s first pictures, astronomers discover that the telescope has “blurred vision,” caused by a slight distortion in the 2.4-meter primary...

View more

Science Discovery
Ring resolved around Supernova 1987A
Ring resolved around Supernova 1987A
Release date: August 29, 1990

Hubble resolves, to an unprecedented detail of 0.1 arcsecond, a mysterious elliptical ring of material around the remnants of Supernova 1987A.

OBJECT...

View more

HubbleSite press release
Milestone Release
First science paper
October 1, 1990

The first science paper from a Hubble observation is submitted by Tod Lauer of the National Optical Astronomy Observatory in Tucson, Ariz. This paper...

View more

Pre-launch - 1990 - 1991 - 1992 - 1993 - 1994 - 1995 - 1996 - 1997 - 1998 - 1999 - 2000 - 2001 - 2002 - 2003 - 2004 - 2005 - 2006 - 2007 - 2008 - 2009 - 2010 - 2011 - 2012 - 2013 - 2014 - 2015