They least resemble rocky planets like Venus Earth and Mars, particularly they least resemble planets that we would consider as possible life sustaining planets.
Most known extrasolar planets least resemble Earth, both in terms of size and distance from their parent stars. Gas giants, hot Jupiters, and super-Earths are more common than small, rocky planets like Earth among the exoplanets discovered so far.
Most known extrasolar planets least resemble Earth due to their extreme characteristics such as being extremely close to their parent star, having very short orbital periods, or being much larger than Jupiter. These differences make them fundamentally different from Earth in terms of habitability and physical properties.
Earth is the inner planet that has at least one moon, known as the Moon.
Mercury is the smallest planet in the Solar System
All the planets have orbits so four cannot be picked out.
Uranus
Most known extrasolar planets least resemble Earth, both in terms of size and distance from their parent stars. Gas giants, hot Jupiters, and super-Earths are more common than small, rocky planets like Earth among the exoplanets discovered so far.
We tend to see the large planets farthest away from their stars. So it is unlikely we will find any small planets close to their star similar to Mercury.
Most known extrasolar planets least resemble Earth due to their extreme characteristics such as being extremely close to their parent star, having very short orbital periods, or being much larger than Jupiter. These differences make them fundamentally different from Earth in terms of habitability and physical properties.
Mars The inner planets such as Mars, Earth or Mercury. these are too small to identify in other systems and too close to the star.
This question is impossible to answer. As of today, 11th April 2011, there are over 540 known extrasolar planets - each one is different in it's own unique way. The only answer, based on today's knowledge, is that none - so far - are like the inner planets but that is due to our technology rather than the actual planets.
Mercury and Venus have no known satellites, all other planets have at least one.
Of the eight planets in our solar system, only Mercury and Venus have no known satellites. Furthermore, Pluto has at least four of them.
Earth is the inner planet that has at least one moon, known as the Moon.
There are 8 planets in the solar system, 6 have at least one moon. Mercury and Venus have no known moons.
It is not generally known how many planets are in each galaxy; it isn't even known how many planets are in our own galaxy, and will probably never be known exactly, due to its enormous size. However, according to latest observations, it seems likely that every star has several planets, at least on average.
There over at least a billion planets out there orbiting at least a million stars. We do not no any important planets out there right now, at least currently.