what are the main characteristics of outer planets?
6702
The four outer planets have faster orbits and spins, a composition of gases and liquids, numerous moons, and rings. The outer planets are made of hydrogen and helium, so they are called gas giants.
269316
The Jovian planets are Jupiter, Saturn, Uranus, and Neptune. They orbit far from the sun. These planets have no solid surfaces and are essentially large balls of gas composed primarily of hydrogen and helium. They are much larger than the terrestrial planets (Earth, Mercury, Venus, and Mars).
1061249
The four planets farthest from the Sun are the outer planets. ... Since the inner planets didn't have enough mass to hold on to these light gases, their hydrogen and helium floated away into space. The Sun and the massive outer planets had enough gravity to keep hydrogen and helium from drifting away.
92935
The four outer planets—Jupiter, Saturn, Uranus, and Neptune—are all gas giants made primarily of hydrogen and helium. They have thick gaseous outer layers and liquid interiors. All of the outer planets have numerous moons, as well as planetary rings made of dust and other particles.
1301436
They are characterized by having orbits lying always within the region of the outer planets. The sizes of those discovered so far is comparable to the larger asteroids and hence they are much bigger than a typical cometary nucleus.
30344
The temperature of the early solar system explains why the inner planets are rocky and the outer ones are gaseous. ... In the outer regions of the solar system where it was cooler, other elements like water and methane did not vaporize and were able to form the giant planets.
658944
Some of the characteristics scientists are looking for when they search for other Earth-like planets are planets that have many of the same physical features as Earth itself. These characteristics include liquid water, rocks, and other complex chemistry available that can support life.
671468
The four inner planets, or terrestrial planets, have solid, rocky surfaces. Mercury is the smallest planet and the closest to the Sun. It has an extremely thin atmosphere, with surface temperatures ranging from very hot to very cold.
1237018
The four inner planets, or terrestrial planets, have solid, rocky surfaces. Earth, the third planet from the Sun, is the only planet with large amounts of liquid water, and the only planet known to support life. Earth has a large round moon. Mercury is the smallest planet and is the closest to the Sun.
985719
['Terrestrial Planets. Mercury, Venus, Earth, Mars (Inner Planets) Small (about the size of the Earth) Rocky, usually with large iron cores. ... ', "Jovian Planets. Jupiter, Saturn, Uranus, Neptune (Outer Planets) Large (about 10 times the size of the Earth) No solid surface -- ``Gas Giants''"]
77831
The outer planets are also called the Jovian planets or gas giants. Like the inner planets, the outer planets have similar characteristics to one another. ... While the inner planets have few or no moons, the outer planets have dozens each. The inner and outer planets are separated by the asteroid belt.
922105
["It is the least dense layer of the Earth's atmosphere. ... ", 'Some gases found in this layer can escape and go to outer space because of the small amount of gravity that is in it. ... ', 'Heat cannot be transferred in this layer because it has very few particles due to the very high air density.']
727894
The Inner and Outer Planets in Our Solar System. ... The inner planets (in order of distance from the sun, closest to furthest) are Mercury, Venus, Earth and Mars. After an asteroid belt comes the outer planets, Jupiter, Saturn, Uranus and Neptune.
596855
Inner planets have fewer moons, small, silicate surface, nickel-iron core, higher density and rotate more slowly compared to outer planets. Outer planets have a greater number of moons, no solid part; rotate faster, have a lower density as well as rings in some cases (Jupiter and Saturn).
1320149
['is directly above the stratosphere and below the thermosphere.', 'extends from around 50-85 km above our planet (31-53 miles)', 'possess temperatures that decrease with height throughout the mesosphere.', 'contains strong zonal winds (east-west), atmospheric tides, planetary waves, and gravity waves.']
1435455
The Outer Planets These planets are much larger than the inner planets and are made primarily of gases and liquids, so they are also called gas giants. This image shows the four outer planets and the Sun, with sizes to scale. From left to right, the outer planets are Jupiter, Saturn, Uranus, and Neptune.
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How do the outer planets differ from the inner planets? Outer planets differ from inner planets in composition, size, distance, and mass. Outer planets are made of gases rather than rock and metal like inner planets. Unlike inner planets, outer planets are larger and spaced farther apart.