Mercury (planet) - Wikipedia
Mercury is the first planet from the Sun and the smallest in the Solar System. It is a rocky planet with a trace atmosphere and a surface gravity slightly higher than that of Mars.
Mercury - Science@NASA
May 7, 2025 · Mercury Facts 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, Color, Size, & Symbol | Britannica
Jan 6, 2026 · 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 …
Mercury Facts | Mercury Size | Mercury Planet Color | How Big ...
Dec 24, 2025 · Mercury is the smallest planet in the Solar System in both mass and diameter. It’s 18 times less massive than the Earth, and its diameter barely reaches two-fifths of the Earth’s size.
Mercury facts | BBC Sky at Night Magazine
Jun 26, 2025 · Facts about the planet Mercury, including surface features, missions and the history of our relationship with the closest planet to the Sun.
Mercury Retrograde Dates for 2026 - The Old Farmer's Almanac
See Mercury retrograde dates for 2026 and learn what they mean. Discover how this planetary event may affect communication, travel, and more.
Mercury: Size, distance from the Sun, orbit | Astronomy.com
Oct 20, 2023 · Mercury is the closest planet to the Sun, with its average distance about 36 million miles (58 million km).