They are similar in size,mass,density and gravity
Neptune and uranus are called twins. The Earth and Venus are called twins because of the similarity in size. See the related link for more information. The Earth and mars are not considered twins.
Venus and Mars are often called Earth's twins because they are rocky planets like Earth, but they have different environments. Venus has a thick toxic atmosphere, while Mars has a thin atmosphere with extreme temperatures.
Earth and Venus are nearly the same size.
No, it is not twins with Earth. Venus is more commonly known as twins with Earth.
Venus is Earth's evil twin, because Venus is almost the same size as Earth.
venus
yes
Venus because it is almost the same size as Earth.
None, because Venus is smaller than Earth, even if they are twins. However, 1 Venus can fit into Earth, but it would leave almost no room, because Venus is only slightly smaller than Earth.
Mercury,Venus,earth,and mars
All I can think of is that Venus is sometimes called Earth's "sister planet, or twin planet".
Venus