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This article is a list of notable unsolved problems in astronomy. Problems may be theoretical or experimental. Theoretical problems result from inability of current theories to explain observed phenomena or experimental results. Experimental problems result from inability to test or investigate a proposed theory.
Dr. Bless died in 2015, and his contributions to the Hubble Space Telescope and the HSP instrument were noted in news media. [2] He worked at the University of Wisconsin–Madison, and the HSP was the lightest and least expensive of the launch instruments. [2] The HSP instrument is located as of 2015 at the University of Wisconsin-Madison's ...
Since it was too difficult to bring the HST back to earth for repairs the engineers considered everything from replacing the telescope's secondary mirror by sending a spacewalking astronaut into the telescope's optical tube, to installing a circular shade around the opening of the tube, which would reduce the aperture and improving the focus by ...
The Meade Instruments (also shortened to Meade) was an American multinational company headquartered in Watsonville, California, that manufactured, imported and distributed telescopes, binoculars, spotting scopes, microscopes, CCD cameras, and telescope accessories for the consumer market. [2]
When Edmund Scientific introduced the telescope in 1976 they called it "The Edmund Wide-Field Telescope" with a Part Number "2001" [5] Edmund had a public contest which ran until November 15, 1976, to come up with a name. [6] The winning name was "Astroscan 2001". The "2001" part of the name was dropped over time.
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There are many applications for ULE, but by far the most common is for mirrors and lenses for telescopes in both space and terrestrial settings. One of the most well known examples of the use of ULE is in the Hubble Space Telescope's mirror. Another good example of its application is in the Gemini telescope's mirror bank. This type of material ...
These included making telescopes rigid enough so they would not sag out of focus during the exposure, building clock drives that could rotate the telescope mount at a constant rate, and developing ways to accurately keep a telescope aimed at a fixed point over a long period of time. Early photographic processes also had limitations.
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