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What is a terrestrial planet?
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- The terrestrial planets in our solar system orbit relatively close to the Sun, this gives them their other name; the “Inner Planets”
- Earth is the most hospitable to life. Mars may have supported life in the past, but there is no evidence that conditions have ever been life-friendly on Mercury or Venus.
- Each of the terrestrial planets has a central core made mostly of iron. The layer above the core is called the “mantle” and is usually made of silicate rocks.
- The surfaces of terrestrial planets have mountains, craters, canyons, and volcanoes. About 75% of Earth’s surface is covered in water. Both Mars and Earth have permanent polar ice caps.
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.
A terrestrial planet, also known as a telluric planet or rocky planet is defined as a planet that is composed primarily silicate rocks or metals. In our solar system, the terrestrial planets are the inner planets - i.e. the ones closest to the Sun.
- Mercury. Mercury is the smallest terrestrial planet in the solar system, about a third the size of Earth. It has a thin atmosphere, which causes it to swing between burning and freezing temperatures.
- Venus. Venus, which is about the same size as Earth, has a thick, toxic carbon-monoxide-dominated atmosphere that traps heat, making it the hottest planet in the solar system.
- Earth. Of the four terrestrial planets, Earth is the largest, and the only one with extensive regions of liquid water. Water is necessary for life as we know it, and life is abundant on Earth — from the deepest oceans to the highest mountains.
- Mars. Mars has the largest mountain in the solar system, rising 78,000 feet (nearly 24 km) above the surface. Much of the surface is very old and filled with craters, but there are geologically newer areas of the planet as well.
Jun 23, 2023 · 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. These rocky terrestrial planets include the four closest to our sun: Mercury, Venus, Earth and Mars.
- Mitch Ryan
1. Inner Planets (or Terrestrial Planets) – the planets inside of the asteroid belt. The inner planets are Mercury, Venus, Earth, Mars. 2. Outer Planets (or Gas giants) –the planets outside of the asteroid belt. The outer planets are Jupiter, Saturn, Uranus, and Neptune.
Apr 18, 2024 · Terrestrial planets are a type of planet that are primarily composed of silicate rocks or metals. They are also known as rocky planets or inner planets, as they are located closer to the sun compared to gas giants.
