The Hubble Space Telescope was designd and manufactured on Earth, at
a cost of about 1.2 billion dollars. It was then carried into space aboard
the Space Shuttle, and inserted into orbit on April 24, 1990.
the hubble space telescope.
1) The Voyager 2 spacecraft in 1989. 2) The Hubble Space telescope. 3) Earth based methods, especially spectroscopy.
Once the Space Telescope project had been given the go-ahead, work on the program was divided among many institutions. Marshall Space Flight Center (MSFC) was given responsibility for the design, development, and construction of the telescope, while theGoddard Space Flight Center was given overall control of the scientific instruments and ground-control center for the mission. MSFC commissioned the optics company Perkin-Elmer to design and build the Optical Telescope Assembly (OTA) and Fine Guidance Sensors for the space telescope. Lockheed was commissioned to construct the spacecraft in which the telescope would be housed. Perkin-Elmer was commissioned to build the optical components of the Hubble Space Telescope. The construction of the main mirror was begun in 1979 and polishing completed in 1981 in Danbury Connecticut.
Voyager 2 flew past Neptune in August 1989. The HST took its first pix of Neptune in 2005.
The period between 1980 and 1989 was important in the history of space exploration because of significant milestones achieved during that time. Examples include the launch of the Space Shuttle program in 1981, the successful deployment of the Hubble Space Telescope in 1990, and the first Martian landing with NASA's Viking missions in 1976. These developments marked advancements in space technology, scientific discovery, and international cooperation.
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Exploring Neptune has only just begun, with only one explorer, Voyager 2, which visited on August 25, 1989. The possibility of a Neptune Orbiter was discussed, apart from that no other missions have been given serious thought
Only one space probe has ever visited Neptune, and that's Voyager 2, which flew past in 1989. However, I suppose you could add the Hubble Space Telescope to the list too, since even though it orbits Earth it is a space mission and has taken photos of Neptune that are far clearer than any we can obtain from the ground - nothing approaching the quality of Voyager 2's pictures, though.
The dark spot mentioned likely refers to a storm on Neptune known as the Great Dark Spot. This storm was observed by the Hubble Space Telescope in 1989 but had disappeared by 1995 when the Voyager 2 spacecraft revisited Neptune. The reasons for its disappearance are still not fully understood.
The planet with a great dark spot that eventually disappeared was Neptune. This large dark spot was first observed in 1989 by the Voyager 2 spacecraft but had disappeared by the time Hubble Space Telescope observed Neptune in 1994. The exact cause of its disappearance is still not fully understood.
Edward Hubble lived for 63 years, from 1889 to 1953.
The period between 1980 and 1989 is significant in the history of space exploration due to major advancements in space technology and the expansion of international collaboration. Notably, the launch of the Hubble Space Telescope in 1990 (though conceived earlier) represented a leap in astronomical observation capabilities, allowing scientists to gather unprecedented data about the universe. Additionally, the development of the Space Shuttle program during this decade enabled reusable spacecraft, paving the way for more frequent and versatile missions, including satellite deployment and construction of the International Space Station.