
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 …
Mercury - Science@NASA
Mar 12, 2025 · Mercury is the smallest planet in our solar system and the nearest to the Sun. Mercury is only slightly larger than Earth's Moon. It's the fastest planet, zipping around the Sun …
Mercury Facts - Science@NASA
Mar 12, 2025 · 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 …
Mercury Facts - Interesting Facts about Planet Mercury - Space Facts
Mercury is the smallest planet in the Solar System. One of five planets visible with the naked eye a, Mercury is just 4,879 Kilometres across its equator, compared with 12,742 Kilometres for …
Mercury | Facts, Color, Size, & Symbol | Britannica
Mar 19, 2025 · Mercury is the smallest planet in the solar system, and it is also the planet closest to the Sun, making it the most difficult of the planets to see with the unaided eye. Because its …
All About Mercury | NASA Space Place – NASA Science for Kids
Apr 7, 2025 · 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 …
In Depth | Mercury – NASA Solar System Exploration
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 percent of the planet's radius. There is …
Mercury Fact Sheet - NSSDCA
Jan 11, 2024 · Mercury Observational Parameters Discoverer: Unknown Discovery Date: Prehistoric Distance from Earth Minimum (10 6 km) 77.3 Maximum (10 6 km) 221.9 Apparent …
Mercury: Facts about the smallest planet - Live Science
May 15, 2022 · 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 …
10 Need-to-Know Things About Mercury - NASA Solar System Exploration
Mercury is a rocky planet, also known as a terrestrial planet. Mercury has a solid, cratered surface, much like the Earth's moon. Mercury's thin atmosphere, or exosphere, is composed …