Mercury(水星) is the closest planet to the sun. It is a planet slightly larger than the Earth’s moon. It is covered in craters. Some craters have ice in them, even though the planet is hot. Sunlight never touches some parts because of the planet’s special position. Without air, ther...
With the exception of the Sun, Mercury is the closest celestial body to Earth. Due to its proximity to the Sun, it experiences极端的温度 fluctuations, with the surface temperature reaching up to 432°C during the day and dropping to as low as -172°C at night.The planet's t...
Mercury is the closest planet to the sun and has a thin atmosphere, no air pressure and an extremely high temperature. Take a look inside the planet. (Image credit: Karl Tate, SPACE.com) Oddly, due to Mercury's highly elliptical orbit and the 59 Earth-days or so it takes to rotate ...
“Earth” actually came from old English and Germanic words, meaning “ground”. 5 A. The name is pretty fitting, right? B. However, others decided to call it Uranus. C. Ancient Romans paid a lot of attention to them. D. Jupiter is the largest planet in the solar system. E. It...
This indicates that Mercury's dense iron core is relatively larger than Earth's, probably comprising the majority of the planet. Mercury therefore has only a relatively thin silicate mantle and crust.Mercury's interior is dominated by a large iron core 15、whose radius is 1800 to 1900 km. ...
Which planet is closest to the sun? A. Earth B. Mercury C. Mars D. Venus 相关知识点: 试题来源: 解析 B。A 选项“Earth”是地球;B 选项“Mercury”是水星,是离太阳最近的行星;C 选项“Mars”是火星;D 选项“Venus”是金星。反馈 收藏
1、Mercury Mercury (0.4 AU) is the closest planet to the Sun and the smallest planet (0.055 Earth masses). Mercury has no natural satellites, and its only known geological features besides impact craters are "wrinkle-ridges", probably produced by a period of contraction early in its history....
Studying the planet Mercury is a challenge. With Mercury being closest to the sun, observations from Earth are only possible duringdawn or twilight hours, when the Sun’s brightness is dim. Spacecraft exploration has also been a challenge due to Mercury’s fast orbiting speeds. The first space...
Which is the closest planet to the sun? A. Mercury. B. Venus. C. Earth.相关知识点: 试题来源: 解析 A 听力原文为: Mercury is the closest planet to the sun. Venus is the second planet from the sun. Earth is the third planet from the sun....
【题目】Mercury(水星) is the closest planet to the sun. It is a planet slightly larger than the Earth’s moon. It is covered in craters. Some craters have ice in them, even though the planet is hot. Sunlight never touches some parts because of the planet’s special position. Without ...