Smallest planet: The right answer for this

The right answer for this question is that the smallest planet in our Solar System is Mercury. Introduction to Mercury: The Smallest Planet Mercury is one of the eight planets that orbit the Sun in our Solar System. It is the smallest and the closest planet to the Sun. This makes Mercury the first planet in the solar system, neighbour to planet ... Mercury is the closest planet to the Sun, and the smallest planet in our solar system - only slightly larger than Earth's Moon. Mercury is the first planet from the Sun and the smallest in the Solar System. It is a rocky planet with a trace atmosphere and a surface gravity slightly higher than that of Mars. Mercury – The smallest planet in our solar system, Mercury’s radius is about 2,440 km (1,516 mi), making its diameter roughly 4,880 km (3,032 mi). It is about 0.38 times the size of Earth.