Why is Mars the second home of mankind? Does Mars have a small star?

As people's knowledge and living standards improve, more and more people like to study celestial bodies, planets, and the universe. We are full of infinite curiosity about the unknown world. Why is Mars the second home of mankind? Today we will study and discuss this topic with you, hoping to increase our knowledge.

Contents of this article

1. Why Mars is the second home of mankind

2. Are there any small stars around Mars?

3. How many years is the orbital period of Mars?

Why Mars is humanity's second home

According to NASA's research results over the past few decades, billions of years ago, Mars was still a planet with no water everywhere. The environment at that time was the same as that of the Earth, which was completely suitable for the existence of life. The inclination of the rotation axis of Mars is almost the same as that of the Earth, so this red planet has four seasons like the Earth. Like the Earth, after the hemisphere of Mars enters winter, there is no sunlight at its poles, but at the poles of Mars, a large amount of carbon dioxide in the air solidifies into a thick wall of solid carbon dioxide, which is dry ice on Earth. When the sun shines on the polar dry ice layer, the dry ice disappears. Under the dry ice is the polar cap composed of water ice. The water ice in the polar cap of the northern hemisphere of Mars is slightly less than half of that in Greenland on Earth. Many significant landforms on the surface of Mars can only be seen in the data sent back by spacecraft, which are somewhat similar to some landforms on Earth.

Mars is one of the eight planets in the solar system. It is the fourth planet from the inside to the outside of the solar system. It is a terrestrial planet with a diameter of about 53% of the Earth and an inclination of its axis of rotation similar to that of the Earth.

Does Mars have a small star?

Mars has no small stars. In the solar system, only the sun is a star. Stars are spherical luminous plasmas held together by gravity. Almost all other stars visible on Earth at night are in the Milky Way, but because of their great distances, they appear to be fixed points of light. Historically, the more prominent stars have been organized into constellations and asterisms, and the brightest stars have their own traditional names. Star catalogs compiled by astronomers provide standards for naming many different stars.

How many years is the orbital period of Mars?

Mars is one of the eight planets in the solar system. It is the fourth planet from the inner to the outer solar system. It is a terrestrial planet with a diameter of about 53% of the Earth and a mass of 11% of the Earth. The orbital period of Mars is 686.980 days. One year on Mars is approximately equal to two years on Earth.

Mars is basically a desert planet, with sand dunes and gravel all over the surface and no stable liquid water (on September 28, 2015, NASA announced that there is a small amount of water on Mars). The atmosphere, which is mainly composed of carbon dioxide, is both thin and cold, with sand and dust suspended in it, and dust storms often occur every year. There are polar caps composed of water ice and dry ice at both poles of Mars, which grow and decline with the seasons.