Inner_Planets

Inner Planets Inner Planets Mercury It is the planet closest to the sun. Its nearest point to the sun is 29 million miles and the maximum distance is 43 million miles away. Mercury's surface contains rough, porous, dark-colored rock. Spectroscopic studies say that only a very thin atmosphere, containing sodium and potassium, exists on Mercury. Mercury has been hit by so many comets and asteroids that its surface is full of craters. It takes 88 Earth days for Mercury to orbit around the sun. It is the second smallest planet. It takes Mercury 59 Earth Days to rotate around its axis. Mercury is the only known planet on which the day is longer than the year. „h Mercury resembles the Earth's moon. This planet has no moon. Mercury's day equals 3 Earth months. Mercury's gravity is about one-third of the Earth's gravity. Mercury's diameter is 3,025 miles. Mercury consists of virtually no atmosphere. Mercury has a weak magnetic field and a trace of atmosphere one-trillionth the density of the Mercury's iron core is about the size of the Earth's moon. Venus It is the second planet in distance from the sun. Other than the sun and moon, Venus is the brightest object in the sky. planet, earth, atmosphere, venus, sun, miles, mercury, surface, mars, earth's, distance, about, water, million, mercury's, days, star, soil, sky, red, moon, gravity, temperature, oxygen, one, nitrogen, named, day, consists, called, year, very, venus', two, time, takes