Apr 25, 2025 · Mercury formed about 4.5 billion years ago when gravity pulled swirling gas and dust together to form this small planet nearest the Sun. Like its fellow terrestrial planets, Mercury has a …

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 is the smallest planet. Your weight on Mercury would be 38% of your weight on Earth. A solar day on the surface of Mercury lasts 176 Earth days. A year on Mercury takes 88 Earth days. It’s not …

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.

Mar 26, 2024 · Get facts about the planet Mercury. Learn about its orbit, temperature extremes, and atmosphere. Discover whether life on Mercury is likely.

Nov 13, 2025 · Mercury has been a cooled molten rock for billions of years, and it is the only planet in our Solar System that is bare rock. Planet Mercury is named after the Roman god Mercury because …

Dec 24, 2025 · Since Mercury is a terrestrial planet, it’s mainly composed of iron, nickel, and silicate rock. It has a large iron core, which is about 61% of the planet’s volume (in comparison, the Earth’s …

Nov 7, 2025 · Mercury, the closest planet to the Sun, has a slow rotation and fast orbit, making a day on Mercury last 176 Earth days. Its extreme temperatures and unique features continue to fascinate …

Mercury is the smallest planet in the Solar System. 2. The orbital speed of Mercury is 47.8 km/sec (29.7 miles/sec). 3. Mercury has no atmosphere and no known satellites, perhaps because of its proximity …

Dec 23, 2023 · Among the eight planets in the Solar System, Mercury is the closest to the Sun and has a lot of significant information that can be collected. With these facts about Mercury, let’s learn more …