Asked by: Myrtie Jaureguiondo
science space and astronomy

Why are Venus and Earth similar?

Last Updated: 13th January, 2020

Venus is sometimes called Earth's twin because Venus and Earth are almost the same size, have about the same mass (they weigh about the same), and have a very similar composition (are made of the same material). They are also neighboring planets.

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Also to know is, what does Venus and Earth have in common?

Venus compared to Earth. Venus, Mars and Earth, three out of the four inner or 'rocky' planets of the Solar System, have a lot in common – a solid surface you could walk on, a comparable surface composition, an atmosphere and a weather system.

Likewise, does Venus have the same atmosphere as Earth? Venus has no surface water, a toxic, heavy atmosphere made up almost entirely of carbon dioxide with clouds of sulphuric acid and at the surface the atmospheric pressure is over 90 times that of the Earth at sea-level.

Regarding this, why do Venus and the Earth have different atmospheres?

While Venus' atmosphere is mostly carbon dioxide, it is much thicker than Earth's, and contains four times the nitrogen. Even with it's vast oceans, Earth's atmosphere would likely have been dominated by carbon dioxide were it not for the appearance of life.

How is Earth similar to planets?

"The Earth is remarkable for its precisely-tuned amount of water, not too much to cover the mountains, and not so little that it's a dry desert, as are Mars and Venus, our 'sister' planets," he said. Earth's water is also special in that it has remained liquid for so long.

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