The slight optical defect (known as a spherical aberration, and less than 4 microns, 1/5 the thickness of a human hair) discovered in the Hubble's primary mirror after it was deployed in space, was corrected by a system known as COSTAR (Corrective Optics Space Telescope Axial Replacement). Built by Ball Aerospace, it was manufactured and tested between the Hubble's first deployment and her First Servicing Mission in 1993.
COSTAR (since replaced, as all Hubble instruments installed after the FSM have corrective optics) worked much like corrective eyeglasses, using a system of tiny mirrors to correct for the flaw. The result of COSTAR's installation (and all of us who worked on it waited with our breath held until it was operational and the first pictures were in) was nothing less than spectacular, restoring Hubble to its original design specifications.
The Hubble Telescope was named after its designer Edwin Hubble.
Telescope, hence the hubble telescope!
The Hubble Telescope is a telescope that orbits the earth every 97 minutes
The replacement for the Hubble is called the James Webb Space Telescope.
The Hubble Telescope weighs 24,500 pounds.
when there are problems with the hubble space telescope, astronomers send astronauts to go fix the problem.
The Hubble Space Telescope was named after Edwin Hubble.
The Hubble Telescope was named after its designer Edwin Hubble.
Telescope, hence the hubble telescope!
The Hubble Telescope is a telescope that orbits the earth every 97 minutes
The replacement for the Hubble is called the James Webb Space Telescope.
what is the comparison between Hubble telescope and Galileo telescope
The Hubble telescope is unique because it was the first space telescope. Also, the Hubble is one of the largest and most versatile.
Edwin Hubble
The Hubble Telescope weighs 24,500 pounds.
the hubble telescope edwin hubble :)
Hubble telescope The Hubble Space Telescope.