Mercury (planet) - Wikipedia
The surface of Mercury is heavily cratered, as a result of countless impact events that have accumulated over billions of years. Its largest crater, Caloris Planitia, has a diameter of 1,550 …
Mercury | Facts, Color, Size, & Symbol | Britannica
2024年10月7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.
Mercury Facts - Science@NASA
The smallest planet in our solar system and nearest to the Sun, Mercury is only slightly larger than Earth's Moon. From the surface of Mercury, the Sun would appear more than three times as …
Mercury - NASA Science
Its surface is covered in tens of thousands of impact craters. Despite its proximity to the Sun, Mercury is not the hottest planet in our solar system – that title belongs to nearby Venus, …
All About Mercury | NASA Space Place – NASA Science for Kids
2024年11月8日 · Mercury’s surface can be as hot as 800 degrees F during the daytime and as cold as -300 degrees F during the nighttime. (But Mercury is not the hottest planet in the solar …
First Global Topographic Map of Mercury Released | U.S ...
2016年5月6日 · USGS scientists created the first global topographic map of Mercury. This high-resolution map provides the first comprehensive view of Mercury’s entire surface, illustrating …
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. …