Venus in uninhabitable. The surface of the planet is hot enough to melt lead, and it has an atmosphere that's so thick it would crush the human body according to NASA.
Venus is Earth's closest neighbor and is a lot like Earth on the inside, but its atmosphere is thick and hot, so no human could survive a visit to its surface. Its atmosphere is made mainly from carbon dioxide and sulfuric acid, and sulfuric acid clouds surround the entire planet. Because of the greenhouse effect, Venus is one of the solar system's hottest places, and if humankind could sniff the air there, it would smell strongly of rotten eggs.