Mercury.
Mercury is the innermost and smallest planet in the Solar System.
Mars is the fourth planet from the Sun and the second smallest planet in our solar system. Mercury is the smallest and innermost planet in our solar system, orbiting closest to the Sun.
Mercury is the innermost planet in our solar system and is most likely to be an outer planet due to its proximity to the Sun.
It is the innermost planet.
The solar system is found between the orbits of two planets, with the innermost known planet being Mercury and the outermost known planet being Neptune. The solar system also consists of other celestial bodies such as dwarf planets, moons, asteroids, and comets.
Mercury is the closest planet to the Sun in our solar system, orbiting approximately 36 million miles away from it. It is the smallest and innermost planet, taking about 88 Earth days to orbit the Sun.
In our solar system, the planet Mercury is the innermost (closest to the Sun), or the first planet counting outwards.
Jupiter is the closest planet to the Sun "after" Mars.
Mercury is a terrestrial planet, meaning it is a rocky planet like Earth. It is the smallest and innermost planet in our solar system.
Mercury is the closest planets to the sun, and is `rocky` so is also the closest rocky (or terrestrial) planet.
No, Mercury does not have a twin planet. It is the smallest and innermost planet in our solar system, and there is no other planet that is exactly like Mercury in terms of its size, composition, and distance from the Sun.