There are a lot of experts who usually refer to Venus as the sister planet of the earth. The main reason for this is the size of Venus when compared to earth. The former is only smaller than earth by 638 kilometers. Even if the sizes of these two planets are almost the same, Venus is known for its inability to sustain life.
It has an atmosphere that can only be considered as poisonous to a lot of people. It contained mostly carbon dioxide which is bad for the body. Surviving in Venus will also be complicated and impossible because of the heat.