Which planet is closest to the sun?

Mercury is the closest planet to the sun in our solar system. Its proximity to the sun affects various factors, such as its temperature and orbital characteristics. Being the innermost planet, Mercury orbits the sun at an average distance of about 57.91 million kilometers (about 36 million miles), making it complete one orbit every 88 Earth days. This close orbit results in extreme temperatures, with surface temperatures soaring during the day and dropping significantly at night. Understanding Mercury’s position not only helps us learn about its unique environment but also provides insight into the characteristics of planets in our solar system, including their size, composition, and atmospheres.