Mercury (planet) - Wikipedia
Mercury appears to have a solid silicate crust and mantle overlying a solid, metallic outer core layer, a deeper liquid core layer, and a solid inner core. [28] [29] The composition of the iron-rich core remains uncertain, but it likely contains nickel, silicon and perhaps sulfur and carbon, plus trace amounts of other elements. [30]
What Is Mercury Made Of? - Space.com
2016年10月14日 · Scientists used the calculated density to determine that Mercury holds a large metallic core. With a radius of 1,100 to 1,200 mile (1,800 to 1,900 km), the core makes up about 85 percent of...
Mercury Facts - Science@NASA
2017年10月16日 · Mercury is the second densest planet, after Earth. It has a large metallic core with a radius of about 1,289 miles (2,074 kilometers), about 85% of the planet's radius. There is evidence that it is partly molten or liquid.
Mercury Fact Sheet - NSSDCA
2024年1月11日 · Surface pressure: <~5 x 10 -15 bar (0.005 picobar) Average temperature: 440 K (167 C) (590-725 K, sunward side) Total mass of atmosphere: <~10000 kg Atmospheric composition (Column abundances in 10 6 per cm 2): Sodium 12,000-200,000; Magnesium 100,000; Oxygen <40,000; Hydrogen 5000, Potassium 800-1300, Calcium 300-1000; Iron …
What Are The Planets Made Of? - WorldAtlas
2022年12月4日 · Despite its small size, however, Mercury is actually the second densest planet in the solar system after the Earth, and this is due to the composition of its core. Mercury possesses a core of iron, a fairly dense material.
Geology of Mercury - Wikipedia
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.
Planet Mercury, explained - National Geographic
2018年10月19日 · It investigated the planet's composition, the structure of its core, and its magnetic field, in addition to capturing global images of the surface in multiple wavelengths.
Composition of Mercury - Universe Today
2008年4月30日 · What is the composition of Mercury? Astronomers have estimated that the Mercury composition is made up of approximately 70% metals and 30% silicate material. In fact, it’s only...
Mercury Composition: What Is Mercury Made Of? - Science ABC
2024年6月2日 · Mercury is made up of iron and silica rocks. The planet has more iron in its core than any other entity in our solar system. Another fascinating fact about Mercury is abundance of volcanoes on its surface.
What Is Mercury Made Of? - Sciencing
2018年11月19日 · Information about Mercury's composition is based on the Mariner 10 and MESSENGER probes that orbited the planet. Mercury has an unusually large molten metallic core made up principally of iron and nickel. Above the core is a 500-kilometer rocky mantle covered by a thin crust of loose rocks and dust.