Planet Compare - NASA Solar System Exploration
2025年1月9日 · Explore NASA's real-time science encyclopedia and compare the sizes of planets in our solar system.
In Depth | Earth – NASA Solar System Exploration
While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the …
Earth By the Numbers - NASA Solar System Exploration
2025年1月9日 · Earth By the Numbers More Destinations Click for more Jupiter Click for more Earth Click for more Mercury Click for more Mars Click for more Venus Click for more ...
In Depth | Venus – NASA Solar System Exploration
The planet is nearly as big around as Earth – 7,521 miles (12,104 kilometers) across, versus 7,926 miles (12,756 kilometers) for Earth. From Earth, Venus is the brightest object in the …
In Depth | Mercury – NASA Solar System Exploration
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 …
In Depth | Mars - NASA Solar System Exploration
With a radius of 2,106 miles (3,390 kilometers), Mars is about half the size of Earth. If Earth were the size of a nickel, Mars would be about as big as a raspberry. From an average distance of …
In Depth | Earth's Moon – NASA Solar System Exploration
Size and Distance. With a radius of about 1,080 miles (1,740 kilometers), the Moon is less than a third of the width of Earth. If Earth were the size of a nickel, the Moon would be about as big …
In Depth | Our Solar System - NASA Solar System Exploration
Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as …
Jupiter By the Numbers – NASA Solar System Exploration
2024年5月7日 · Jupiter is the fifth planet from the Sun, and the largest in the solar system – more than twice as massive as the other planets combined.
Saturn By the Numbers – NASA Solar System Exploration
2025年1月9日 · Saturn is the sixth planet from the Sun, and the second largest in the solar system. It’s surrounded by beautiful rings.