The planets that are close to the sun in our solar system are Mercury, Venus, Earth, and Mars.
inner
Mercury is the closest of the eight planets to the sun.
Mercury and Venus are the two planets that retrograde motion around the sun.
It depends on what you mean by "close"
They are too close to the sun to have rings.
They move faster.
terrestrial planet
The orbits of all planets in our solar system do not overlap; each planet has its own distinct orbit around the Sun. However, there are times when planets appear close together in the sky from our viewpoint on Earth due to their positions in their respective orbits.
The closeness to the Sun is not directly related to the mass.
All planets revolve around the Sun.
Mercury and Venus are the two planets nearest the Sun.