Because mars has a thinner atomsphere and greater distance from the sun.
Because of its thinner atmosphere and greater distance from the sun, Mars is a cold planet. The Mars Pathfinder recorded midsummer temperatures ranging from -13c to -77c. The Martian atmosphere, which is composed mostly of carbon dioxide, is very thin. Because the temperature and air pressure in the Martian atmosphere are so low, liquid water cannot persist on Mars' surface.
Water on Mars is mostly frozen due to its low atmospheric pressure and low average temperatures. These conditions prevent water from existing as a liquid on the surface and instead result in it freezing into ice. Additionally, Mars' thin atmosphere cannot trap heat effectively, making it difficult for water to remain in liquid form.
Mercury is hotter than Mars. Mercury is the closest planet to the sun, so its proximity results in higher temperatures compared to Mars. Additionally, Mercury has an extremely thin atmosphere that cannot retain heat, causing its surface temperatures to vary greatly between day and night.
Mars has two moons, Phobos and Deimos. Both moons have a very thin atmosphere, so they do not have traditional weather like what we experience on Earth. The surface temperatures on these moons can vary greatly depending on their position relative to Mars and the Sun.
Since outer space has a temperature of about 3 K (-273 °C), the planets cannot be any colder, so if you can live there (the ISS) you can live anywhere. But as far as survivable temperatures for humans, only Earth qualifies. The next closest is Mars, which would need less heat to make habitable. The polar zones of Mercury have bearable surface temperatures as well, but they exist in a hard vacuum (as with space).
There is no liquid water on the surface of Mars. The atmospheric pressure is so low and the temperatures are so cold that any water on the surface would freeze and boil at the same time.
Because of its thinner atmosphere and greater distance from the sun, Mars is a cold planet. The Mars Pathfinder recorded midsummer temperatures ranging from -13c to -77c. The Martian atmosphere, which is composed mostly of carbon dioxide, is very thin. Because the temperature and air pressure in the Martian atmosphere are so low, liquid water cannot persist on Mars' surface.
Water on Mars is mostly frozen due to its low atmospheric pressure and low average temperatures. These conditions prevent water from existing as a liquid on the surface and instead result in it freezing into ice. Additionally, Mars' thin atmosphere cannot trap heat effectively, making it difficult for water to remain in liquid form.
Mercury is hotter than Mars. Mercury is the closest planet to the sun, so its proximity results in higher temperatures compared to Mars. Additionally, Mercury has an extremely thin atmosphere that cannot retain heat, causing its surface temperatures to vary greatly between day and night.
Mars has two moons, Phobos and Deimos. Both moons have a very thin atmosphere, so they do not have traditional weather like what we experience on Earth. The surface temperatures on these moons can vary greatly depending on their position relative to Mars and the Sun.
Because mars has a thin atmosphere.
There are two reasons. First, Mars is farther from the sun than Earth is and so receives less heat. Second, it has a thin atmosphere, which means it cannot hold on to heat as well.
Mars is not hot, its average temperature is well below freezing.Mars varies between low temperatures of about -87 oC to highs of about -5 oCThis compares to Mercury which averages about 106 oC
Yes, it has an atmosphere so it has air pressure.
Because on Mars it is too cold so any water on the surface is frozen, while on Venus its too hot.
According to NASA the surface temperature range between -87 to -5 ° Celsius or -125 to 23 ° Fahrenheit. So you might say that Mars is cold. (source: http://solarsystem.jpl.nasa.gov/planets/profile.cfm?Object=Mars&Display=Facts&System=Metric)
Since outer space has a temperature of about 3 K (-273 °C), the planets cannot be any colder, so if you can live there (the ISS) you can live anywhere. But as far as survivable temperatures for humans, only Earth qualifies. The next closest is Mars, which would need less heat to make habitable. The polar zones of Mercury have bearable surface temperatures as well, but they exist in a hard vacuum (as with space).