Astronomy on Mars

See also: Extraterrestrial sky: Mars
Mosaic of two different Mars Global Surveyor Mars Orbiter Camera (MOC) exposures of Earth, the Moon, and Jupiter from 2003
Mars sky turned violet by water ice clouds
Close-up of Mars sky at sunset, showing more color variation, as imaged by Mars Pathfinder

Many astronomical phenomena viewed from the planet Mars are the same as or similar to those seen from Earth; but some (e.g. the view of Earth as an evening/morning star) are quite different. For example, because the atmosphere of Mars does not contain an ozone layer, it is also possible to make UV observations from the surface of Mars.