Only Earth is known to harbor life.
It has been theorized that life may have existed at one time on Venus and Mars, and there is hope for finding life on several of Jupiter's and Saturn's moons.
Earth is one of eight planets.Earth is one of eight planets.Earth is one of eight planets.Earth is one of eight planets.
They are the eight planets Mercury to Neptune.
There are eight planets and five dwarf planets in our solar system.
There are eight planets.
There are only eight planets in our solar system.
No not all the planets have craters on.
Neither. The eight planets orbit the sun, but in space there is no "under" or "over."
There are eight true planets in our solar system.
The Sun and it's eight major planets are part of the solar system. Our solar system also contains 5 dwarf planets (as of 2017) and more than 700,000 minor planets and other objects.
Of the eight planets, Earth, mars, Jupiter and Saturn are the four 'middle' planets.
The four Jovian planets
Eight