Mars- The Red Planet (diameter, moons, facts, satellites and rovers) |Technospace

Mars is the fourth planet from the Sun and the seventh largest in the Solar System. It is commonly referred to as the Red Planet because of the reddish dust covering its surface. Mars takes about 12 earth years to complete one orbit around the Sun. The planet Mars is named after the God of Warvin Roman mythology.

Mars is one of the most explored bodies in our solar system, and it's the only planet where we've sent rovers to roam the alien landscape. NASA currently has three spacecraft in orbit, and it has one rover and one lander on the surface. NASA launched the next-generation Perseverance rover to Mars on July 30, 2020. India and ESA have spacecraft in orbit above Mars. These robotic explorers have found lots of evidence that Mars was much wetter and warmer, with a thicker atmosphere, billions of years ago. Mars was first visited by Mariner 4, in 1965. 

The most successful Mars mission, called Mars Pathfinder, and Mars Global surveyor, were launched in 1996.

Mars is the fourth planet from the Sun. It orbits the Sun at an average distance of 228 million km, half as far again as the Earth, so human visitors would find it very cold. Although summers near the equator can be quite warm, the average temperature is 63 degrees Celsius below zero - similar to winters in Antarctica. The nights are also bitterly cold.The diameter of Mars is 6,779 km.

Mars has two moons: Phobos and Deimos.

Deimos:-

Deimos is the smaller and outermost of the two natural satellites of Mars, then the other being Phobos. Deimos has a mean radius of 6.2 km and takes 30.3 hours to orbit Mars. Deimos is 23,460 km from Mars, much further than Mars's other moon, Phobos.

Radius: 6.2 km

Distance to Earth: 77.79 million km

Gravity: 0.003 m/s²

Orbital period: 30 hours

Orbits: Mars

Discoverers: Asaph Hall, Pascal Lee

Mars is a cold desert world. It is half the size of Earth. Mars is sometimes called the Red Planet. It's red because of rusty iron in the ground. Like Earth, Mars has seasons, polar ice caps, volcanoes, canyons, and weather. It has a very thin atmosphere made of carbon dioxide, nitrogen, and argon. There are signs of ancient floods on Mars, but now water mostly exists in icy dirt and thin clouds. On some Martian hillsides, there is evidence of liquid salty water in the ground.

Phobos :-

Phobos was the god and personification of fear and panic. Phobos orbits 6,000 km from the Martian surface, closer to its primary body than any other known planetary moon. It is so close that it orbits Mars much faster than Mars rotates, and completes an orbit in just 7 hours and 39 minutes.

Average orbital speed: 2.138 km/s

Equatorial rotation velocity: 11.0 km/h (6.8 mph) (at longest axis)

Escape velocity: 11.39 m/s; (41 km/h)

Olympus Mons a 550 kms wide volcano in Mars is the largest in the Solar System.