Which planet in the solar system is closest to the sun?

Mercury is the closest planet to the sun in our solar system. It is the smallest planet in the solar system, and it orbits the sun at an average distance of about 36 million miles. Mercury's distance from the sun is responsible for its extreme temperature variations, ranging from -290 degrees Fahrenheit (-180 degrees Celsius) at night to 800 degrees Fahrenheit (430 degrees Celsius) during the day.

Mercury has a diameter of about 3,032 miles (4,879 kilometers) and it completes an orbit around the sun in just 88 Earth days. It has no moons or rings, and its surface is heavily cratered and is covered in a layer of fine dust, which is created by the constant bombardment of micrometeoroids. The planet's surface features include large plains, deep valleys, and high cliffs.

Mercury is the closest planet to the Sun. It has an average distance of 57.9 million kilometers from the Sun. It is also the smallest planet in our solar system. Mercury has no moons and a very thin atmosphere. The surface of Mercury is covered in craters, which were formed by impacts from asteroids and comets. Mercury has a very hot day side and a very cold night side. The day side can reach temperatures of up to 427 degrees Celsius, while the night side can drop to temperatures of -173 degrees Celsius. Mercury takes 88 Earth days to orbit the Sun. It also rotates on its axis once every 59 Earth days. This means that a day on Mercury is longer than its year.