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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.
The Saturn Sky is a convertible sports car that was produced by Saturn, and was initially released in the first quarter of 2006 as a 2007 model.
Article on Saturn's Northern Electrostatic Disturbance Archived 2012-09-10 at the Wayback Machine on Sky and Telescope; 1990/1 Hubble Space Telescope image; 2006: observed with a 12" telescope by amateurs near Paris. Volunteers Help NASA Track Return of the Dragon Archived 2016-03-04 at the Wayback Machine; Kidger, Mark (1992).
So maybe it’s best we leave Saturn exploration to uncrewed probes after all. In 2017, NASA’s Cassini probe sent us our closest view of Saturn to date. If you wanted to take a closer look at ...
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Weekend stargazers will be treated with stellar views of Saturn, the ringed jewel of the solar system, as it reaches its closest point to the Earth. On Sunday, Aug. 27, Saturn will reach ...
The surface temperature is at least 35.6 K, with the nitrogen atmosphere in equilibrium with nitrogen ice on Triton's surface. Triton has increased in absolute temperature by 5% since 1989 to 1998. [34] [35] A similar rise of temperature on Earth would be equal to about 11 °C (20 °F) increase in temperature in nine years. "At least since 1989 ...
Scientists at the NASA Ames Research Center modelled the temperature on tide-locked exoplanets in the habitability zone of red dwarf stars. They found that an atmosphere with a carbon dioxide ( CO 2 ) pressure of only 1–1.5 standard atmospheres (15–22 psi) not only allows habitable temperatures, but allows liquid water on the dark side of ...