Mercury and venus...pluto if you still count it. [Edit: this should read: Mercury and Mars... the latter being smaller than Venus]
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.
The two major parts of the solar system are the inner solar system, which includes the four inner terrestrial planets (Mercury, Venus, Earth, Mars) and the asteroid belt, and the outer solar system, which includes the gas giant planets (Jupiter, Saturn, Uranus, Neptune) and the Kuiper Belt.
Saturn is the second largest planet in the Solar System and exhibits a large ring structure.
In our solar system, Mercury and Venus are the two planets which do not have moons.
Mercury and Venus are the only two major planets in our solar system without moons. They are the two planets closer to the Sun than Earth.Two of the five dwarf planets have no known moons : the asteroid Ceres and the Kuiper Belt object Makemake.Neither Mercury nor Venus have any moons.
Mercury is the smallest planet in our solar system, a little under two fifths of Earth's diameter.
Generally speaking moons are smaller than planets. The only exceptions are the two largest moons in this solar system, Ganymede and Titan, which are larger than Mercury, the smallest planet in the solar system.
6 Saturn is the second largest planet after Jupiter
Two planets in the solar system have the letter "m" in their name: Mars and Mercury.
Epimtheus it is a very smallest satellite in solar system
Jupiter and Saturn are the largest planets in our solar system.
Jupiter and Saturn
Mercury and Venus
Two of them
Neptune and Uranus
rock and gas
Among the planets in the solar system the only two planets do not have any moon at all . And they are the planets Mercury and the planet Venus. Both these planets are nearer the sun compared to earth.