Mercury (planet) - Wikipedia
Mercury is the first planet from the Sun and the smallest in the Solar System. In English, it is named after the ancient Roman god Mercurius (Mercury), god of commerce and communication, and the messenger of the gods. Mercury is classified as a terrestrial planet, with roughly the same surface gravity as Mars.
Mercury - NASA Science
Mercury is the smallest planet in our solar system and the nearest to the Sun. Mercury is only slightly larger than Earth's Moon. Its surface is covered in tens of thousands of impact craters.
Mercury | Facts, Color, Size, & Symbol | Britannica
2024年10月7日 · Mercury, the innermost planet of the solar system and the eighth in size and mass. Its closeness to the Sun and its smallness make it the most elusive of the planets visible to the unaided eye. Because its rising or setting is always within about two hours of the Sun’s, it is never observable when the sky is fully dark.
Mercury Facts - Science@NASA
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.
All About Mercury | NASA Space Place – NASA Science for Kids
2024年11月8日 · Mercury is the smallest planet in our solar system. It’s just a little bigger than Earth’s Moon. Mercury itself, though, doesn’t have any moons. It is the closest planet to the Sun, but it’s actually not the hottest. Venus is hotter. Along with Venus, Earth, and Mars, Mercury is one of the rocky planets.
Mercury: A complete guide to the closest planet to the sun - Space…
2023年6月9日 · Mercury is the closest planet to the sun and the smallest planet in the solar system. Here we explore the strange world in more detail.
Planet Mercury, explained - National Geographic
2018年10月19日 · Named for the fleet-footed Roman messenger god, Mercury is the closest planet to the sun, zipping around our parent star at an average of 36 million miles away. However, Mercury’s orbit is not...
Mercury: Facts about the smallest planet - Live Science
2022年5月15日 · Mercury is the closest planet to the sun and the smallest planet in our solar system. With a diameter of about 3,032 miles (4,880 kilometers), Mercury is less than half the size of Earth, which...
Mercury: Exploration - NASA Science
NASA's MESSENGER spacecraft flew by Mercury three times and orbited the planet for four years before crashing on its surface at the end of its mission. The European Space Agency and JAXA launched a joint mission to Mercury in 2018.
Solar System Exploration: Mercury - NASA
2023年4月25日 · This site has facts, figures, images and links about the planet Mercury.