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In astronomy, an extraterrestrial sky is a view of outer space from the surface of an astronomical body other than Earth.
The only extraterrestrial sky that has been directly observed and photographed by astronauts is that of the Moon. The skies of Venus, Mars and Titan have been observed by space probes designed to land on the surface and transmit images back to Earth.
Characteristics of extraterrestrial sky 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.[1] Astronomical objects may also be visible and can include natural satellites, rings, star systems and nebulas and other planetary system bodies.
- ^ Coffey, Donavyn (July 4, 2020). "What color is the sunset on other planets?". Live Science. Retrieved July 4, 2020.