Mars: Terrestial planet

1.Equatorial diameter 6792 km
2.Masa 6.4x²³ kg.
3.Mean distance from sun 228 million km. 4.Rotation period 1.03 day. 5.solar orbit period 1.88 year. 6.surface gravity 3.7 m/s² 7.surface temperature -63°c 8.Temperature summer 17°c 9.Temperature winter -140°c MARS: is the fourth planet from the sun and the second smallest planet in the solar system. The reddish appearance of MARS surface is caused by iron dioxide(rust).. EARTH-LIKE while the MARS is about half as big as the Earth, There are still many similarities: MARS has a rocky surface and polar ice caps. The days on MARS are only 40 minutes longer, the axial tilt gives it similar seasons to our ( although each lasts about twice as long). SURFACE: MARS has a dramatic land scape, With towering volcanoes and great canyon system. Of all the planet in the solar system it has the highest mountain, olympus mons and the largest conyon, valles and marineris. WATER: There is strong evidence mactian atmosphere was once far denser than it is now ,and that water once ran freely on its syrface. There is also mounting evidence that much of this water remains locked away underground. MOONS: MARS has two small natural satellites, phobos and deimos. That orbit very very close to the planet. These moons May be captured asteroid, it has been predicted that about 50 millioni years phobos will either crash onto MARS' surface or break up into a ring structure around the planet. MISSIONS: mars is the focus of intense study.with two rovers( eploration rover oppotunity and science laboratory curiosity) operating on the surface, while three international missions orbit the planet: NASA's Mars obyssey and MARS recconaissance orbiter and ESA's MARS express. OBSERVATION: Mars can easily be seen from the naked eye, as can its reddish coloring. its apparent magnitude is surpassed by the sun. The moon,venus but it can briefly match jupiter's brightness at certain point in its orbit...........

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