Saturn, Uranus, Neptune.
Pluto is no longer a Planet =(
What is the reason that life is less likely on the outermost planets compared to the innermost planets
Ices.
Neptune is the outermost major planet.
Of the four inner terrestrial planets, Mars is the furthest from the sun. This is the outermost of the four inner planets.
Mars is the last of the inner planets. It is the fourth planet from the Sun and right before the Asteroid belt.
Neptune is the outermost planet, and is farthest from Earth's orbit.
Tales of Three Planets was created in 1964.
The four outermost planets (Jupiter, Saturn, Uranus, Neptune) are mostly made of hydrogen and helium gas, with smaller amounts of other elements like water, ammonia, and methane. These planets are known as gas giants because of their composition and lack of a solid surface.
Tales of Three Planets has 283 pages.
terrestrial planets
The only generally accepted metalloid that has three electrons in its outermost shell is Boron - symbol B - electronic structure 1s22s22p1 .
Neptune is the fourth and outermost of the gas giant planets and also has rings. Its atmosphere is mostly hydrogen and helium.