Why is Venus called “Earth’s twin”? | panorama

AMMAN – The UAE is writing a new chapter in its bright space record by announcing an ambitious scientific mission to explore the planet Venus and seven asteroids within the solar system.

The unprecedented space project comes months after the UAE succeeded in achieving a historic achievement by sending the first Arab probe to Mars’ orbit in February 2021, to be the fifth country in the world to reach the Red Planet.

Venus is the second planet from the sun and closest to the Earth. Was this close enough to call the non-identical brother “Earth’s twin”?

What space scientists have found so far confirms that the definitive answer is no, as the two neighboring planets are similar in some characteristics that make them twins, although the more accurate expression is “non-identical twin”.

“Al-Ain Al-Akhbar” reviews the most exciting information about the planet adjacent to the Earth, which made it an alternate twin; Based on some of the leading sites in space such as NASA and Space.or.

1- Similar in size

If Earth has anything like a twin in the solar system, it’s definitely Venus, because they’re roughly the same size.

The size of Venus is 12.104 km, while the size of the planet Earth is estimated at 12,756, with great similarity between the two neighbors.

2- The similarity in composition
Venus is not only called the “brother of the Earth” because it is similar in size, but also the structure, structure and composition are very similar to the planet humans.

The mass of Venus is about 0.81 of the mass of the Earth, and its diameter is less than the diameter of the Earth by only 650 km, and because their masses are very similar, this means that they have almost the same density and therefore the same composition.

3- It may host a life
Scientists learned about Venus’s super-rotation by observing the motion of dark streaks in its atmosphere, and discovered the possibility of microbial life on the planet.

The surface temperature of Venus is 482 degrees Celsius, but between 50 and 60 kilometers (31 and 37 miles) above the surface the temperature and pressure are the same as those at the Earth’s surface.

But what about sulfuric acid withdrawal? Microbes can be encapsulated in sulfur octagon (S8) molecules that are impervious to sulfuric acid, as S8 also absorbs ultraviolet light.

Fundamental differences between Venus and Earth

Many fundamental differences have been observed by astronomers between the two planets, Venus and Earth, despite what they are called “twins”, including:

Venus is the hottest planet in the solar system, and its extreme heat is enough to melt lead, reaching 482 degrees Celsius (900 degrees Fahrenheit), which is different from the situation on Earth.

Venus’s thick atmosphere is filled with greenhouse gases and carbon dioxide, and its clouds are sulfuric acid, all of which are poisonous gases in another difference with Earth.

Atmospheric pressure of carbon dioxide on Venus is 95 times that of Earth’s atmosphere.

In addition to the above, Venus rotates in the opposite direction to the Earth and most other planets, which makes the sun rise from the west and set from the east.

The surface of Venus is a barren, inhospitable universe covered in dome-like volcanoes, fissures, and mountains, with vast volcanic plains and vast tortuous plateaus.

Not only that, as Venus is a very slow planet and its rotation around the sun is also very slow, which makes the length of its day approaching a full year on Earth.

There are more volcanoes on Venus than any other planet in the solar system, and scientists estimate there are more than 1,600 volcanoes on its surface, and there are likely a lot of volcanoes so small that we can’t see them.

One of the most important differences between the two planets is that Venus is an unlikely place for life, although some scientists assume the opposite with the presence of microbes high in the clouds where they are cooler and the pressure is similar to the surface of the Earth.

– One of the known differences is the distance of Venus from the sun about 108 million km, and its orbit around the sun is not completely circular, while the Earth is 150 million km from the “hot disk”.

– Venus appears as the brightest planet in the solar system, although it is not the largest, and scientists explain that its proximity to the Earth is the reason, as it is considered the second brightest thing in the night sky after the moon.

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