 |
Servicing
Mission 3A (SM3A)
|
•
|
December 19, 1999: (STS-103)
Launch of Shuttle Discovery. |
|
•
|
Replacement of RSU (Rate Sensing
Units containing gyroscopes). |
|
•
|
Installation of new computer. |
|
•
|
General maintenance. |
| |
|
| November 13, 1999: Hubble
placed in safe mode after the failure of a fourth gyroscope.
|
|
|
|
 |
HST Orbital
Systems Test (HOST)
|
•
|
October 29, 1998:
(STS-95)
Launch of Shuttle Discovery. |
|
•
|
HOST
mission was flown to test new technologies for installation
into Hubble during servicing missions 3A and 3B. |
|
|
|
 |
Servicing Mission 2 (SM2)
|
|
 |
 |
Servicing Mission 1 (SM1)
|
•
|
December 2, 1993: (STS-61)
Launch of Shuttle Endeavour |
|
•
|
COSTAR
corrective optics installed, replacing
HSP. |
|
•
|
WFPC2
replaced WFPC.
|
|
|
 |
 |
Hubble Space Telescope (HST) Deployed
|
•
|
April 24, 1990:
(STS-31)
Launch of Shuttle Discovery. |
|
•
|
April 25, 1990: Hubble Space
Telescope deployed into orbit. |
|
•
|
June 25, 1990:
Spherical aberration discovered in Hubble's primary mirror
|
|
•
|
COSTAR
Approved: the creation of a complex packaging of five
optical mirror pairs which would rectify the spherical
aberration in Hubble's primary mirror. |
|
|
|
 |
Congress approves funding for The Hubble Space Telescope
NASA names its largest, most complex, and capable orbiting telescope
in honor of Edwin Hubble.
|
|
 |
 |
The LST - Large Space Telescope
Astrophysicist Lyman Spitzer gathered the support of other astronomers
for a "large orbital telescope".
In 1969, the National Academy of Sciences gave its approval
for the Large Space Telescope (LST) project, and the hearings
and feasibility studies continued. |
|
|
 |
Conception of a space telescope
Famed rocket scientist Herman Oberth publishes an article speculating
on telescopes in orbit.
Space pioneer Hermann Oberth was considered by many to be the
most famous mentor of the late Dr. Wernher von Braun, the first
director of the NASA Marshall Space Flight Center in Huntsville,
Alabama.
|
|
|
 |
Edwin Hubble and the Hooker Telescope
2.5-meter (100-inch) Hooker Telescope begins operations at Mt.
Wilson Observatory in Pasadena, California.
With this telescope in the 1920's, astronomer Edwin Hubble measured
the distances and velocities of galaxies, work which led to
his discovery of the expanding Universe. |
|
|
|
