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There are a number of derelict orbiters around Mars whose location is not known precisely; there is a proposal to search for small moons, dust rings, and old orbiters with the Optical Navigation Camera on the Mars Reconnaissance Orbiter. There should be 8 derelict Mars orbiters barring unforeseen events if they have not decayed as of 2016. One example is Mariner 9, which entered Mars orbit in ... More @Wikipedia
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- Mars Characteristics - Atmosphere, Surface, Gravity & More - Space FactsAtmosphere Temperature Weather. The Martian atmosphere is the very definition of “thin air”. Its atmospheric pressure is about a hundred times less than Earth’s. Future Mars explorers will not be able to breathe Martian air because it’s almost completely carbon dioxide with a few traces of nitrogen, oxygen, and water vapor.
- Mars Fact Sheet - NASAMars Observational Parameters Discoverer: Unknown Discovery Date: Prehistoric Distance from Earth Minimum (10 6 km) 54.6 Maximum (10 6 km) 401.4 Apparent diameter from Earth Maximum (seconds of arc) 25.6 Minimum (seconds of arc) 3.5 Mean values at opposition from Earth Distance from Earth (10 6 km) 78.34 Apparent diameter (seconds of arc) 17.8 Apparent visual magnitude -2.0 Maximum apparent ...
- The Planet Mars - National Weather ServiceAtmosphere and Weather: The Martian atmosphere is composed primarily of carbon dioxide. However unlike Venus, the Mars atmosphere is very thin, subjecting the planet to a bombardment of cosmic rays and producing very little greenhouse effect. Mariner 4, which flew by Mars on July 14, 1965, found that Mars has an atmospheric pressure of only 1 ...
- Atmosphere of Mars - WikipediaThe atmosphere of Mars is the layer of gases surrounding Mars.It is primarily composed of carbon dioxide (95%), molecular nitrogen (2.8%), and argon (2%). It also contains trace levels of water vapor, oxygen, carbon monoxide, hydrogen, and noble gases. The atmosphere of Mars is much thinner than Earth's.The average surface pressure is only about 610 pascals (0.088 psi) which is less than 1% of ...
- In Depth | Mars – NASA Solar System ExplorationAtmosphere. Atmosphere. Mars has a thin atmosphere made up mostly of carbon dioxide, nitrogen, and argon gases. To our eyes, the sky would be hazy and red because of suspended dust instead of the familiar blue tint we see on Earth. Mars' sparse atmosphere doesn't offer much protection from impacts by such objects as meteorites, asteroids, and ...
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