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Space Unit Test - grade 6 science
Space Unit Test - grade 6 science

... 5. I take 88 days to orbit around the sun, and I make one full rotation in 59 days. I can also get as cold as -183°C, and as hot as 407°C. I am _______________. 6. Out of all the planets, my rings are the most noticeable, and I am the second biggest of all nine planets. I am _________________. 7. I ...
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... 2. Which of the following statements CORRECTLY describes why Copernicus decided that the orbits of Mercury and Venus are smaller than the orbit of the Earth? A) Both planets can sometimes be seen high in our sky at midnight. B) Both planets show a complete cycle of phases, like the Moon. C) Both pla ...
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Extraterrestrial skies



In astronomy, the term extraterrestrial sky refers to a view of outer space from the surface of a world other than Earth.The sky of the Moon has been directly observed or photographed by astronauts, while those of Titan, Mars, and Venus have been observed indirectly by space probes designed to land on the surface and transmit images back to Earth.Characteristics of extraterrestrial skies appear to vary substantially due to a number of factors. An extraterrestrial atmosphere, if present, has a large bearing on visible characteristics. The atmosphere's density and chemical composition can contribute to differences in colour, opacity (including haze) and the presence of clouds. Astronomical objects may also be visible and can include natural satellites, rings, star systems and nebulas and other planetary system bodies.For skies that have not been directly or indirectly observed, their appearance can be simulated based on known parameters such as the position of astronomical objects relative to the surface and atmospheric composition.
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