2025年1月17日 · Mercury's surface temperatures are both extremely hot and cold. Because the planet is so close to the Sun, day temperatures can reach highs of 800°F (430°C). Without an atmosphere to retain that heat at night, temperatures can dip as low as -290°F (-180°C).

2025年2月25日 · Mercury has a radius of about 2,440 km, and its surface area is 74,797,000 km 2. Its mass is 3.30 × 10 23 kg. Mercury is the smallest major planet in both size and mass.

2024年3月1日 · Quick Answer: Mercury’s major surface features include craters, smooth and inter-crater plains, scarps, cliffs, ridges, valleys, and evidence of past volcanic activity and tectonism.

Mercury is classified as a terrestrial planet, with roughly the same surface gravity as Mars. The surface of Mercury is heavily cratered, as a result of countless impact events that have accumulated over billions of years.

Mercury's surface temperatures are both extremely hot and cold. Because the planet is so close to the Sun, day temperatures can reach highs of 800°F (430°C). Without an atmosphere to retain that heat at night, temperatures can dip as low as -290°F (-180°C).

2023年6月9日 · Because the planet is so close to the sun, Mercury's surface temperature can reach a scorching 840 degrees Fahrenheit (450 degrees Celsius).

The geology of Mercury is the scientific study of the surface, crust, and interior of the planet Mercury. It emphasizes the composition, structure, history, and physical processes that shape the planet.

The following images illustrate three features from the surface of Mercury: (1) a large impact basin that is similar to Mare Imbrium on the Moon, (2) the highlands of Mercury, (3) and an example of a large geological fault.

2025年1月29日 · The surface is rich in sulfur, about 20 times richer than the surfaces of Earth, the Moon, and Mars. Messenger also found low surface abundances of titanium and iron. Mercury seems to have formed in conditions much more reducing—i.e., those in which oxygen was scarce—than other terrestrial planets.

2012年4月1日 · Mercury is the smallest planet in the Solar System by surface area, volume, and equatorial diameter. Surprisingly, it is also one of the most dense. It gained its ‘smallest’ title after...