The largest inner planet in our solar system is Venus.
Venus, often referred to as Earth’s ‘sister planet’ due to its similar size and composition, has a diameter of about 12,104 kilometers (7,521 miles). Although Mercury is the closest planet to the Sun and the smallest of the terrestrial planets, Venus outstrips it in size. It has a thick atmosphere composed mainly of carbon dioxide and clouds of sulfuric acid, making it the hottest planet in our solar system despite being second from the Sun.
Understanding Venus’s characteristics helps us learn more about planetary formation and the potential for life on other planets. Its conditions are extreme, with surface temperatures reaching around 465 degrees Celsius (869 degrees Fahrenheit), which poses challenges for exploration and study.