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Some Facts about the Sun's Nearest Planet Mercury

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 large as it does when viewed from Earth, and the sunlight would be as much as seven times brighter.
Mercury's surface temperatures are both extremely hot and cold. Because the planet is so close to the Sun,
day temperatures can reach highs of 800°F (430°C). Without an atmosphere to retain that heat at night, temperatures can dip as low as -290°F (-180°C).
The video on the right shows how Mercury rotates around itself!

About Mercury

• Mass: 3.285 × 10²³ kg
• Equatorial diameter: 4,879.4 km
• Surface Gravity: 3.7 m/s²
• Average Temperature: 167°C

Some Facts about Mercury

1. Small World: Mercury is the smallest planet in our solar system.
2. Mercury has a solid, cratered surface, much like the Earth's moon.
3. Mercury is a rocky planet, also known as a terrestrial planet.
4. Mercury is the planet that orbits the closest to the Sun.
5. Mercury takes 59 Earth days to complete its 1 self rotation (1 day).

Things to Know about the Planets in Our Solar System