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APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
The Orbiting Hubble Space Telscope
Explanation: The Hubble Space Telescope (HST) is the largest orbiting public optical telescope in history. Its 2.4 meter diameter reflecting mirror and it s perch above Earth's atmosphere allow it to create exceptionally sharp images. Originally launched in 1990, HST optics were repaired to their intended accuracy in 1993 by the first of several regular servicing missions . Astronomers using HST continue to make numerous monumental scientific discoveries , including new estimates of the age and composition of our universe, previously unknown galaxies , evidence of massive black holes in the centers of galaxies , protoplanetary star systems and star forming regions , and a better understanding of physical processes in our universe. A larger Next Generation Space Telescope (NGST) may be launched as early as 2007.
| Date | August 6, 2001 |
|---|---|
| Credit | Credit: STS-103 , STScI , ESA , NASA |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |