Terrestrial Planets: Definition & facts | Space
Jan 17, 2022 · In our solar system, there are four terrestrial planets, which also happen to be the four closest to the sun: Mercury, Venus, Earth and Mars.
Terrestrial planet - Wikipedia
A terrestrial planet, telluric planet, or rocky planet, is a planet that is composed primarily of silicate, rocks or metals. Within the Solar System, the terrestrial planets accepted by the IAU are the inner planets closest to the Sun: Mercury, Venus, Earth and Mars.
Terrestrial - NASA Science
In our solar system, Earth, Mars, Mercury and Venus are terrestrial, or rocky, planets. For planets outside our solar system, those between half of Earth’s size to twice its radius are considered terrestrial and others may be even smaller.
Terrestrial Planets - NASA
The Solar System. The Sun; Mercury; Venus; Earth; The Moon; Mars; Jupiter; Saturn; Uranus; Neptune; Pluto & Dwarf Planets; Asteroids, Comets & Meteors; The Kuiper Belt; The Oort Cloud; Skywatching
About the Planets - Science@NASA
The first four planets from the Sun are Mercury, Venus, Earth, and Mars. These inner planets also are known as terrestrial planets because they have solid surfaces.
Chapter 1: The Solar System - NASA Science
The planets Mercury, Venus, Earth, and Mars, are called terrestrial because they have a compact, rocky surface like Earth's terra firma. The terrestrial planets are the four innermost planets in the solar system.
Solar system | Definition, Planets, Diagram, Videos, & Facts
3 days ago · There are eight planets in the solar system. The four inner terrestrial planets are Mercury, Venus, Earth, and Mars, all of which consist mainly of rock. The four outer planets are Jupiter, Saturn, Neptune, and Uranus, giant planets that consist mainly of either gases or ice.
Solar system - Planets, Moons, Orbits | Britannica
3 days ago · The four inner, or terrestrial, planets—Mercury, Venus, Earth, and Mars—have rocky compositions and densities greater than 3 grams per cubic cm. (Water has a density of 1 gram per cubic cm.)
Terrestrial Planets Are the Rocky Planets of the Solar System
Jun 23, 2023 · Planets in our solar system fall into one of two major categories: Jovian planets and terrestrial planets. Jovian planets encompass the gas giants and ice giants of the outer solar system, whereas terrestrial planets include the small rocky planets within the inner solar system.
In Depth | Our Solar System – NASA Solar System Exploration
For this reason, the first four planets – Mercury, Venus, Earth, and Mars – are terrestrial planets. They are all small with solid, rocky surfaces. Meanwhile, materials we are used to seeing as ice, liquid, or gas settled in the outer regions of the young solar system.