Venus is a terrestrial meteor.
A terrestrial planet , telluric planet , or rocky planet is a planet that is composed primarily of silicate rocks or metals . Venus is the second planet from the Sun , orbiting it every 224.7 Earth days . Venus is a terrestrial planet and is sometimes called Earth 's `` sister planet '' because of their similar size , mass , proximity to the Sun , and bulk composition . It was the first planet beyond Earth visited by a spacecraft ( Mariner 2 in 1962 ) , and the first to be successfully landed on ( by Venera 7 in 1970 ) .