The Hubble Telescope
The Hubble Space Telescope was named after Edwin Hubble, the leading American astronomer of the 20th century. It was built under the supervision of NASA after the U.S. Congress had authorized its construction in 1977. It is capable of performing observations in the visible, near-ultraviolet, and near-infrared. Power to the two on-board computers is generated by two 2.4 by 12.1 meter solar panels. The Hubble’s current science instruments include three cameras (Wide-Field Planetary Camera 2, Near Infrared, and Faint Object), two spectrographs (High Resolution and Multi-Object), a high-speed photometer, and three fine guidance sensors. The crew of the Discovery space shuttle placed it about 370 miles above the Earth on April 25, 1990. The telescope is a cooperative program of the European Space Agency and NASA to operate a long-lived space-based observatory. The observatory was first dreamt of in the 40’s, designed and constructed in the 70’s and 80’s, and operational in the 90’s. From the beginning, HST was designed to be a long-term space-based observatory. Astronomer Mario Livio of the telescope institute says, “The thing that is so amazing is that, literally every place HST has looked, it has found somethin
. . .
Some common words found in the essay are:
Comet Shoemaker-Levy, Edwin Hubble, Machine Light, Deep Field, NASA Congress, Brad Whitmore, Agency NASA, Princeton Jersey, Pasadena California, Resolution Multi-Object, space telescope, hubble space telescope, deep field, light travels, past images, hubble telescope, 83 minutes, telescope shown, empty space, universe expanding, clumps matter, hubble deep field,
Approximate Word count = 1041
Approximate Pages = 4 (250 words per page double spaced)
|
 |
