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Answered 2015-06-26 23:52:43

Most of the known extrasolar planets are more massive than Earth because massive planets are easier to detect. We have detected planets smaller than Earth.

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Current detection methods are more sensitive to larger planets

Maybe it's because they have to be extra large to be discovered.

Yes, this is true. The more massive planets are gaseous. The relatively small inner planets are rocky, which means the are more dense. The gaseous planets make up for there low density with immense size. For example: Jupiter has 1,000 times the volume of Earth, although it is 300 times more massive than the Earth.

Inside our sollar system, the planets Jupiter, Saturn, Uranus and Neptune are all larger and more massive than Earth.

I think you mean extrasolar planets. Technically, all planets except Earth are "extraterrestrial." At last report there were almost 900 of them, with more to follow. They aren't a "group" in the usual sense, just a category.

Most exoplanets so far discovered resemble Jupiter. However, Earth sized planets have also been discovered and more will be discovered.

More massive planets have more gravitational pull. If a satellite were to pass by Earth and Jupiter at the same distance from each planet, the satellite would be more attracted to start orbiting Jupiter because of its pull. The more massive a planet is the more likely it is to get a satellite to orbit it.

Jupiter's actually 2.5x more massive than all the other planets in the solar system. =)

Of what we have found most are the size of Jupiter or larger. But we know many more extrasolar planets exist that we simply cannot detect. If we were to draw hypotheses on what planets are most abundant they would either be similar to dwarf planets. Or, if the reader does not view dwarf planets as true planets then planets the size of ones in the terrestrial zone like: Mercury, Venus, or Earth. Are probably the most abundant.

I don't think so. No official "planet" in the Solar System has such a weak gravity; most of the so-called "extrasolar" planets (i.e., outside our Solar System) are quite a bit more massive than Earth, since such planets are easier to discover.Other dwarf planets in the Solar System may have a weaker gravity, if you want to count those.

Jovian means Jupiter-like - these planets are made of gas and are several times more massive than the Earth - like Jupiter.

In our solar system, the planets Jupiter, Saturn, Uranus and Neptune are more massive. There are over 300 extra-solar planets known to be circling other stars; in most cases, only very massive planets can be detected at such ranges. It is likely that other smaller planets also exist, but we have no indication of that so far.

Massive is planets that orbit the sun and have more mass

It doesn't make sense to compare the "weight" of planets. Comparing their mass does. Uranus is more massive than Earth.

The Earth stays in its orbit under the force of gravity from the Sun, which is much more massive than all the planets.

They are bigger. To be more precise, more massive.

are more massive than Earth and orbit very close to the star

Yes. The massive giant planets have far more moons than the less massive terrestrial planets.

Yes, the large and more massive outer planets are made mainly from Hydrogen and Helium. They are less dense than the smaller terrestrial planets.

Jupiter, the largest and most massive planet, with a mass of 1.8986 x 1027 kg, around 318 times more massive than the earth alone.

... more massive (it has more mass).... more massive (it has more mass).... more massive (it has more mass).... more massive (it has more mass).

The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars. Although much smaller and not as massive as the outer gas giant planets, they are more dense.

No. The Jovian planets are much more massive than the terrestrial planets.

There are four outer planets : Jupiter, Saturn, Uranus, and Neptune.All are gaseous and more massive than the Earth.Pluto was once designated as a planet, but was reclassified as a "dwarf planet". The four "inner planets" are Mercury, Venus, Earth, and Mars.

Yes, there are over 200 more planets outside the solar system, these planets are called extrasolar planets. There are also more then 170 solar systems inside of the Milky Way, on average astronomers find around 25 new planets a year.

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