Venus' is.
Mars' is next.
Mercury,Venus,Earth and Mars
The Inner Planets: Mercury, Venus, Earth and Mars
It depends. Which planet is closest to Earth depends on where each of the planets is in its orbit, the planets all have different orbital periods. At any given time the closest planet to Earth may be Mercury, Venus, or Mars. Of all the planets, Venus comes closest.
The planets do not orbit the Earth, they orbit the sun.
Earth's moon orbits the Earth however other planets have moons as well, often several per planet. All planets in our solar system orbit the sun, our closest star.
Mars and Venus orbit closest to the earth in the order sunward to rimward: Venus, Earth, Mars.
The distances vary as the planets orbit the Sun. On average, the answer is Mercury.
There are no solar planets that orbit the Sun in less than 24 hours. The closest, Mercury, takes about 88 days to orbit the Sun.
perihelion is the point in a planets orbit when it is closest to the sun
The moon is Earth's closest neighbor in space and the only natural object to orbit it. Counting it in "planets away from Earth" does not make any sense as the planets revolve around the sun, not Earth.
Which planet is closest to Earth varies depending on where the planets are in their orbits. At different times the closest planet may be Mercury, Venus, or Mars. The planet whose orbit comes closest to Earth's is Venus.
Closest to the sun