Which planet is considered the sister planet to earth?

Answer 1

You may be referring to Venus, the 2nd planet which is nearly the same mass and size as Earth.

Since Venus is closer to the Sun than Earth is, Venus orbits more quickly that the Earth does. As Venus passes the Earth, Venus becomes the morning star; then when Venus passes behind the Sun and starts to catch up again, Venus sets after the Sun, becoming the evening star.

Venus is in many ways Earth's sister; they're similar in size, and therefore in surface gravity; they both have substantial atmospheres; and Venus is Earth's closest planetary neighbor after the moon.

But Venus is definitely the nasty sister: its atmosphere is made up primarily of carbon dioxide (97%) and sulfuric acid; its surface temperature averages 900° F (485° C), hotter than the surface of Mercury; and the atmospheric pressure at its surface is 90 times that of Earth.

It's such an inhospitable place that the world record for a surface lander remaining operational is less than an hour, as opposed to Mars exploration rovers, some of which are still operational after more than five years.

Answer 2

Venus is considered the sister planet to Earth. The reason why Venus and Earth are regarded as sister planets is because Venus is almost the same size as Earth.

Answer 3

The planet Venus is nicknamed Earth's sister planet because the two are similar in size, gravity, and bulk composition.

Answer 4

venus because it is almost the same size of earth and was once thought to have liquid water

Answer 5

Venus is sometimes called Earth's sister planet because they are very similar in size.

Answer 6

The planet Venus has sometimes been called Earth's sister planet.

Answer 7

Venus is very close in size to the Earth. However, Venus is much closer to the Sun, is incredibly hot, has an atmosphere of carbon dioxide, and "rain" of sulfuric acid.

Answer 8

That'd be Venus.